KRISTIANTI, N. .; PUTRI, J. P. . . Rancang Bangun Aplikasi Produk Ulew Coffee Berbasis Android. Journal of Information Technology and Computer Science, [S. l.], v. 1, n. 3, p. 266–276, 2021. DOI: 10.47111/jointecoms.v1i3.8821. Disponível em: https://e-journal.upr.ac.id/index.php/jcoms/article/view/8821. Acesso em: 18 aug. 2025.