“Sistem Informasi Monitoring Helpdesk Pada PT. Krama Yudha Ratu Motor Dengan Metode Waterfall”. JUPITER : Journal of Computer & Information Technology 2, no. 1 (February 1, 2021): 63–77. Accessed April 3, 2026. https://ojs.umbk.ac.id/index.php/jupiter/article/view/41.