WIDI ASTUTI, Y., and F. AMIN, S.T., M.Kom. “RANCANG BANGUN SISTEM PENJUALAN SEMBAKO BERBASIS WEB MOBILE”. Information Technology and Telematics, Vol. 8, no. 1, June 2018, https://unisbank.ac.id/ojs/index.php/fti3/article/view/5908.