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Ditasona, Candra and Turmudi, Turmudi and Rosjanuardi, Rizky (2021) Arithmetic Sequence at Gorga. In: Proceedings of the 2nd Annual Conference on blended learning, educational technology and Innovation (ACBLETI 2020). Atlantis Press, pp. 172-175. ISBN 978 94 6239 394 3
Lumbantoruan, Jitu Halomoan (2017) Modul Kalkulus Lanjut 2017. [Teaching Resource]
Sihombing, Lilis Putriana (2019) Pengembangan Permainan Monopoli Pada Materi Aritmetika Sosial Di SMP Kelas VII. S1 thesis, Universitas Kristen Indonesia.