Deda, Yohanis Ndapa, and Hermina Disnawati. “Development of Calculus Teaching Material: Context of Universitas Timor, Indonesia”. International Journal on Emerging Mathematics Education 4, no. 2 (December 21, 2020): 105–114. Accessed November 24, 2024. https://journal.uad.ac.id/index.php/IJEME/article/view/15976.