delson, Delson Angelo, and Muhammat Ridho. 2022. “RANCANG BANGUN PENJUALAN LISENCE KEY BERBASIS WEB PADA PT GFSOFT INDONESIA”. Computer and Science Industrial Engineering (COMASIE) 6 (2):32-39. https://ejournal.upbatam.ac.id/index.php/comasiejournal/article/view/5051.