Jalinus, and Jesi Alexander Alim. “Penjumlahan Dan Pengurangan Bilangan Bulat Interaktif Berbasis Komputer”. Talenta Conference Series: Science and Technology (ST) 2, no. 2 (July 31, 2019). Accessed November 24, 2024. https://talentaconfseries.usu.ac.id/st/article/view/534.