%0 Generic %A external_update %T Pengujian Sistem Informasi E-commerce Usaha Gudang Cokelat Menggunakan Uji Alpha dan Beta %8 2020 %I INFORMATION SYSTEM FOR EDUCATORS AND PROFESSIONALS: Journal of Information … %U https://scholar.google.com/scholar?oi=bibs&cluster=16988432369484594625&btnI=1&hl=en