“SISTEM INFORMASI PENJUALAN TOKO MAINAN BERBASIS WEB MENGGUNAKAN METODE WATERFALL”, VRJ, vol. 3, no. 03, pp. 461–468, Jul. 2026, Accessed: Jul. 28, 2026. [Online]. Available: https://variablejournal.my.id/index.php/VRJ/article/view/343