CHANG, FELIX, dan Amrizal. “SISTEM INFORMASI PENJUALAN SUPPLIER BERBASIS ANDROID”. Computer Science and Industrial Engineering 7, no. 5 (Desember 3, 2022): 1–10. Diakses Mei 19, 2024. https://ejournal.upbatam.ac.id/index.php/comasiejournal/article/view/6137.