“Perancangan Sistem Informasi Penjualan Barang Bekas Berbasis Website Dengan Metode Extreme Programming”. CESS (Journal of Computer Engineering, System and Science) 9, no. 1 (January 10, 2024): 39–50. Accessed March 26, 2026. https://jurnal.unimed.ac.id/2012/index.php/cess/article/view/51465.