SUANDI, Agus; KHASANAH, Fata Nidaul; RETNONINGSIH, Endang. Pengujian Sistem Informasi E-commerce Usaha Gudang Cokelat Menggunakan Uji Alpha dan Beta. INFORMATION SYSTEM FOR EDUCATORS AND PROFESSIONALS : Journal of Information System, [S.l.], v. 2, n. 1, p. 61 – 70, dec. 2017. ISSN 2548-3587. Available at: <https://ejournal-binainsani.ac.id/index.php/ISBI/article/view/672>. Date accessed: 28 mar. 2024.