Lestary, Ratnah, Mulya Sarti Apriani, Rizki Putri Kesuma, Riko Dwi Cahyo, and Teddy Alfra Siagian. “Design of Android-Based Learning Media ‘MathArt’ on Simple Interest, Discounts, and Taxation at the Lower Secondary Level of Education”. Vygotsky: Jurnal Pendidikan Matematika dan Matematika 6, no. 2 (August 31, 2024): 99–110. Accessed November 21, 2024. https://jurnalpendidikan.unisla.ac.id/index.php/VoJ/article/view/1028.