Praptiningsih, Y. E., Ariestya, W. W. and Mustaufa, N. (2016) “PERANCANGAN SISTEM PENJUALAN PULSA”, Jurnal Ilmiah FIFO. Jakarta, Indonesia, 8(2), pp. 127–138. Available at: https://training-ojs3-publikasi.mercubuana.ac.id/index.php/fifo/article/view/1307 (Accessed: 28 May 2026).