Karo karo, febrina K. karo, and M. R. Ridho. “SISTEM INFORMASI E-COMMERCE PADA TOKO PERDANA JAYA BERBASIS WEBSITE”. Computer and Science Industrial Engineering (COMASIE), vol. 5, no. 4, July 2021, pp. 69-78, https://forum.upbatam.ac.id/index.php/comasiejournal/article/view/4036.