gustini, Rian, and Firman Noor Hasan. 2021. “Perancangan Sistem Aplikasi Monitoring Barang MenggunakanBarcodeBerbasis Android. (study Kasus Toko Chacha Cell ITC Cempaka Mas)”. Prosiding Seminar Nasional Teknoka 5 (January):87-92. https://journal.uhamka.ac.id/index.php/teknoka/article/view/10222.