Caroline, Caroline, Helen Sastypratiwi, and Haried Novriando. “Analysis of User Experience on SPOTA UNTAN Using Heuristic Walkthrough Method”. Journal of Information Systems and Informatics 5, no. 3 (September 11, 2023): 1141-1153. Accessed October 13, 2025. https://journal-isi.org/index.php/isi/article/view/509.