“Perancangan Sistem Point of Sale Berbasis Web Dengan Metode Personal Extreme Programming (Studi Kasus : Razzaqqu Cookies)”. Jurnal Intelek Dan Cendikiawan Nusantara, vol. 3, no. 04, Sept. 2026, pp. 10341-55, https://jicnusantara.com/index.php/jicn/article/view/8143.