Wulandari, A. and Suryadi, L. (2018) “SISTEM INFORMASI PENJUALAN DAN PEMBELIAN PERCETAKAN PT HELLO PRINT”, IDEALIS : InDonEsiA journaL Information System, 1(2), pp. 293–297. Available at: https://jom.fti.budiluhur.ac.id/IDEALIS/article/view/395 (Accessed: 15 July 2025).