Gaszella, Wella, and Fatkhul Amin. “SISTEM PENJUALAN OBAT ONLINE APOTEK MANSHURIN DENGAN METODE BETA TEST BERBASIS WEB MOBILE”. SINTAK 2 (November 14, 2018). Accessed August 15, 2020. https://unisbank.ac.id/ojs/index.php/sintak/article/view/6647.