Suandi, Agus, 		Khasanah, Fata, AND 		Retnoningsih, Endang.
" Pengujian Sistem Informasi E-commerce Usaha Gudang Cokelat Menggunakan Uji Alpha dan Beta" <em>INFORMATION SYSTEM FOR EDUCATORS AND PROFESSIONALS : Journal of Information System</em> [Online], Volume 2 Number 1 (1 December 2017)