Alvianus Dengen, A., Radjab Do Esa, R. ., & Budiawan. (2026). Human-Computer Interaction in E-Commerce: A Study of Tokopedia’s Usability, Efficiency, and Satisfaction for Elderly Consumers. Journal of Computer and Information Systems Ampera, 6(3), 140–158. Retrieved from https://journal-computing.org/index.php/journal-cisa/article/view/668