Denis Ardiyan Setyo0. “Rekayasa Perangkat Lunak E-Commerce Obat Dan Alat Kesehatan Pada Ajief Fitnes Centre”. Information Technology and Telematics, Vol. 1, no. 2, Feb. 2013, https://www.unisbank.ac.id/ojs/index.php/fti3/article/view/1068.