Hanifah, Puja, and Machrija Wahyuni Siregar. “Penerapan Metode SUMI Pada Pengujian Usability Aplikasi E-Learning Berbasis Website”. Journal of Applied Informatics and Computing 5, no. 2 (November 1, 2021): 156–159. Accessed September 12, 2026. https://jurnal.polibatam.ac.id/index.php/JAIC/article/view/3349.