Lestari, Resti Madiana, and Rully Charitas Indra Prahmana. “Designing A Learning of Logarithm for Senior High School Students of Grade X”. Jurnal Gantang 3, no. 1 (March 31, 2018): 31–39. Accessed May 4, 2024. https://ojs.umrah.ac.id/index.php/gantang/article/view/382.