Honni, H., Marcelino, R. F., & Radjali, Y. (2011). Pengembangan Aplikasi Sistem Basis Data Penjualan, Pembelian, dan Persediaan: Studi Kasus Pada PT. Speed Game. ComTech: Computer, Mathematics and Engineering Applications, 2(1), 401–409. https://doi.org/10.21512/comtech.v2i1.2772