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Harefa, Nelius and Sumiyati, Sumiyati and Tamba, Riris Marito (2024) Students’ creativity dimension in chemistry e-module based on augmented reality with project based learning approach. Jurnal Pendidikan Kimia (JPKIM), 16 (1). pp. 1-6. ISSN 2549-3116
Sormin, Elferida and Simatupang, Nova Irawati and Purba, Leony Sanga Lamsari and Harefa, Nelius (2023) Analysis of Students' Perceptions of Differences Based on Gender in the Use of Virtual Reality Laboratories. OSR Journal of Research & Method in Education (IOSR-JRME), 13 (3). pp. 34-44. ISSN 2320–7388
Purba, Leony Sanga Lamsari and Sormin, Elferida and Harefa, Nelius and Simatupang, Nova Irawati and Zai, Berkat Hendri Putra (2023) Comparison of Perceptions of High School Students Based on Class Levels on Utilization of Virtual Reality Laboratories. International Journal of Science, Engineering and Management (IJSEM), 10 (1). pp. 31-34. ISSN 2456 -1304
Simatupang, Nova Irawati and Harefa, Nelius and Purba, Leony Sanga Lamsari and Sormin, Elferida (2023) Comparison of Perceptions of National SHS Students in the East Jakarta to Virtual Reality Laboratory. European Chemical Buletin, 12 (7). pp. 4990-4997. ISSN 2063-5346
EC00202352783 (2023) Laboratorium Berbasis Virtual Reality untuk Pembuatan Garam Rangkap dan Kompleks. 000485718.
Harefa, Nelius (2023) Pendekatan Pembelajaran Terintegrasi Mini Research. UKI Press, Jakarta. ISBN 978-623-8287-27-7
Harefa, Nelius and Azzahra, St Fatimah and Fajriah, Silvi Nur and Damayanti, Pingkan Elsye and Waruwu, Nelfin Fiktoris Riski (2023) Penguatan Profil Pelajar Pancasila “Kreatif” Melalui Elaborasi Kearifan Lokal “Kerupuk Opak”. SEMINAR NASIONAL PENDIDIKAN IPA DAN MATEMATIKA 2023. pp. 114-123.
Obet, Zebedius and Sumiyati, Sumiyati and Azzahra, St Fatimah and Harefa, Nelius (2023) Peningkatan Hasil Belajar Kimia Siswa Melalui Metode Tutor Sebaya pada Materi Sistem Periodik Unsur. Jurnal Pendidikan Kimia Universitas Riau, 8 (2). pp. 147-153. ISSN 2721-5164
Harefa, Nelius and Sumiyati, Sumiyati and Waruwu, Nelfin Fiktoris Riski (2023) Persepsi Siswa Terhadap E-Module Kimia Berbasis Augmented Reality: Melalui Pendekatan Project Based Learning. SEMINAR NASIONAL PENDIDIKAN IPA DAN MATEMATIKA KE-1 UNIVERSITAS NEGERI MALANG. pp. 124-133.
Harefa, Nelius (2023) Rubrik Penilaian Matakuliah Terintegrasi Mini Research. [Teaching Resource]
Tamansa, Santhya Anaomi and Peronika, Riska Yuna and Harefa, Ikerman Jaya and Harefa, Nelius (2023) Studi Kelayakan Bentuk Komunikasi Modul Kimia untuk ABK (Anak Berkebutuhan Khusus) Tunawicara pada Materi Bentuk Molekul. SEMINAR NASIONAL PENDIDIKAN IPA DAN MATEMATIKA 2023 UNIVERSITAS NEGERI MALANG, 1. pp. 632-638. ISSN 2964-772x
Harefa, Ikerman Jaya and Tamansa, Santhya Anaomi and Peronika, Riska Yuna and Harefa, Nelius (2023) Studi Kelayakan E-Module Berbasis Flip Pdf Corporate Edition Pada Materi Model Atom dan Ikatan Kimia untuk Anak Berkebutuhan Khusus (ABK). SEMINAR NASIONAL PENDIDIKAN IPA DAN MATEMATIKA 2023 UNIVERSITAS NEGERI MALANG, 1. pp. 639-644. ISSN 2964-772x
Peronika, Riska Yuna and Harefa, Ikerman Jaya and Tamansa, Santhya Anaomi and Harefa, Nelius (2023) Studi Kelayakan E-Module Kimia untuk ABK dengan Pengembangan Bentuk Komunikasi pada Materi Mengenal Reaksi Asam-Basa. SEMINAR NASIONAL PENDIDIKAN IPA DAN MATEMATIKA KE-1 UNIVERSITAS KRISTEN INDONESIA, 1. ISSN 2964-772x
Limbong, Mesta and Faradiba, Faradiba and Harefa, Nelius and Lumbantoruan, Jitu Halomoan (2022) Description of Increasing the Number of Research and Publication of Lecturers at the Indonesian Christian University, East Jakarta. Tadbir : Jurnal Studi Manajemen Pendidikan, 6 (2). pp. 333-352. ISSN 2580 5037
Harefa, Nelius (2022) Etno-Digital : Pelibatan Kearifan Lokal Sebagai Sumber Belajar dalam Upaya Hilirisasi Pelestariannya di Tengah ‘Serangan’ Digital. EduNewsLetter, 1 (2). pp. 4-6. ISSN 2963-7716
EC002022109438 (2022) Laboratorium Kimia Analitik Berbasis Virtual Reality Terintegrasi AI. 000425182.
EC00202287629 (2022) Laboratorium Kimia Berbasis Virtual Reality. 000403373.
Harefa, Nelius and Gulo, Arifman and Silaban, Saronom (2021) Analysis of BOD and COD levels for home industry wastewater: A case study in a sewage streams. Jurnal Pendidikan Kimia, 13 (1). ISSN 2549 3116
Sihotang, Hotmaulina and Harefa, Nelius and Purba, Leony Sanga Lamsari and Murniarti, Erni (2021) Concentration Of Student’s Learning Through Utilization Of Quizlet Application On Learning Evaluation. Advances in Social Sciences Research Journal, 8 (1). pp. 589-598. ISSN 2055 0286
Harefa, Nelius (2021) Mata Kuliah : Kimia Organik II. UKI. (Unpublished)
Harefa, Nelius (2021) Mata Kuliah : Statistika Pendidikan. UKI. (Unpublished)
Harefa, Nelius (2021) Mata Kuliah: ICT II. PROGRAM STUDI PENDIDIKAN KIMA FAKULTAS KEGURUAN DAN ILMU PENDIDIKAN UNIVERSITAS KRISTEN INDONESIA, Jakarta. (Unpublished)
Harefa, Nelius (2021) Mata Kuliah: Kimia Anorganik I. PROGRAM STUDI PENDIDIKAN KIMA FAKULTAS KEGURUAN DAN ILMU PENDIDIKAN UNIVERSITAS KRISTEN INDONESIA, Jakarta. (Unpublished)
Harefa, Nelius (2021) Mata Kuliah: Kimia Dasar. PROGRAM STUDI PENDIDIKAN BIOLOGI FAKULTAS KEGURUAN DAN ILMU PENDIDIKAN UNIVERSITAS KRISTEN INDONESIA, Jakarta. (Unpublished)
Harefa, Nelius (2021) Tren Minat Belajar Kimia Mahasiswa Terhadap Pembelajaran Online Selama Pandemi Covid-19. In: PROCEEDING SEMINAR NASIONAL IPA XI“Inovasi Pembelajaran IPA yang Berwawasan Lingkungan di Masa Pandemi”. Penerbit LPPM UNNES, Semarang, pp. 86-94. ISBN 978-623-6967-68-3
Purba, Leony Sanga Lamsari and Harefa, Nelius and Afridika, Sali and Savera, Dera (2021) The differences of achievement of the national olympiad in chemistry at the public and private senior high school by utilizing quizizz media. Jurnal Pendidikan Kimia, 13 (1). pp. 69-77. ISSN 2549 3116
Sormin, Elferida and Harefa, Nelius and Sitompul, Fransiska and Arodes, Evy S and Cing, Jap Mai and Tehupeiory, Aartje and Naibaho, Lamhot and Simatupang, Nova Irawati and Simanjuntak, Familia Novita and Purba, Leony Sanga Lamsari and Sumiyati, Sumiyati and Azzahra, St Fatimah (2020) AKSI UKI PERDULI DALAM RANGKA PENCEGAHAN PENYEBARAN VIRUS COVID-19. Jurnal Comunità Servizio, 2 (2). pp. 471-478. ISSN 2656 67710
Harefa, Nelius and Tafonao, Gayus Sadarman and Hidar, Samsul (2020) Analisis Minat Belajar Kimia Siswa Melalui Pembelajaran Berbasis Multimedia. Jurnal Kajian, Penelitian dan Pengembangan Kependidikan, 11 (2). pp. 81-86. ISSN 2614 3674
EC00202024783 (2020) HAKI Learning Management System: Aplikasi E-learning Untuk Pembelajaran Online Dan Blended. 000196154.
Harefa, Nelius and Simanjuntak, Familia Novita and Simatupang, Nova Irawati and Sumiyati, Sumiyati and Sormin, Elferida and Purba, Leony Sanga Lamsari and Azzahra, St Fatimah (2020) IDENTIFIKASI RENCANA PELAKSANAAN PEMBELAJARAN GURU KIMIA PADA KEGIATAN SOSIALISASI PENGEMBANGAN KOMPETENSI TERINTEGRASI PENGEMBANGAN RANAH AFEKTIF. Jurnal Comunita Servizio, 2 (1). 235 -253. ISSN 265667710
Harefa, Nelius and Silalahi, Novia Fransisca Dewi (2020) Improvement of student’s learning outcomes and motivation with chemical practicum e-module. Jurnal Pendidikan Kimia, 12 (1). pp. 10-19. ISSN 2549 3116
Harefa, Nelius (2020) LEARNING MANAGEMENT SYSTEM APLIKASI E-LEARNING UNTUK PEMBELAJARAN ONLINE DAN BLENDED. UKI Press, Jakarta. ISBN 978 623 7256 80 9
Purba, Leony Sanga Lamsari and Harefa, Nelius (2020) Pengaruh Kandungan Oksigen Udara Sekolah Terhadap Konsentrasi Belajar Siswa. Jurnal EduMatSains, 4 (2). pp. 169-182. ISSN 2527 7235
Harefa, Nelius and Purba, Leony Sanga Lamsari (2020) Problem solving skills improvement and the impact on students learning outcomes. Journal of Physics: Conference Series.
Harefa, Nelius and Sinaga, Marudut and Silaban, Saronom (2020) Students perception and interest on chemistry: Learning evaluation integrated quizziz media. Jurnal Pendidikan Kimia, 12 (3). pp. 143-150. ISSN 2549 3116
Harefa, Nelius (2019) BUKU PENUNTUN PRAKTIKUM KIMIA ANORGANIK II. UKI Press, Jakarta. ISBN 978 979 8148 86 6
Purba, Leony Sanga Lamsari and Sormin, Elferida and Harefa, Nelius and Sumiyati, Sumiyati (2019) Effectiveness of use of online games kahoot! chemical to improve student learning motivation. Jurnal Pendidikan Kimia, 11 (2). pp. 57-66. ISSN 2549 3116
Harefa, Nelius and Sumiyati, Sumiyati and Purba, Leony Sanga Lamsari (2019) Implementasi Webinar Terhadap Sikap Sadar Keamanan Kimia Mahasiswa. Jurnal Dinamika Pendidikan, 12 (1). pp. 17-28. ISSN 2620 3952
Harefa, Nelius and Setiyadi, Setiyadi and Tampubolon, Sudarno P and Naibaho, Lamhot (2019) PENERAPAN SISTEM EMULSI MEMBRAN TERHADAP KONTROL AIR TAMBAK DAN SISTEM IJUK TERHADAP PENYEDIAAN AIR BERSIH DI BUMI DIPASENA. Jurnal Comunita Servizio, 1 (1). pp. 19-27. ISSN 2656 67710
Harefa, Nelius and Sihotang, Lauresius (2019) PENUNTUN PRAKTIKUM PENDIDIKAN MIPA DASAR “KIMIA UNTUK BIOLOGI”. UKI Press, Jakarta.
Harefa, Nelius and Purba, Leony Sanga Lamsari (2019) The development of chemistry practicum e-module based on simple-practice. Jurnal Pendidikan Kimia, 11 (3). 107 -115. ISSN 2549 3116
Harefa, Nelius and Silalahi, Novia Fransisca Dewi and Sormin, Elferida and Purba, Leony Sanga Lamsari and Sumiyati, Sumiyati (2019) The difference of students’ learning outcomes with project based learning using handout and sway Microsoft 365. Jurnal Pendidikan Kimia, 11 (2). pp. 24-30. ISSN 2085 3653
