Putri, Silvia Agusfiani, Indah Kusuma Dewi, and Afrina Afrina. “Designing and Developing a Web-Based Information System for Incoming and Outgoing Letters Management”. Journal of Computer-based Instructional Media 3, no. 1 (April 18, 2025): 41–57. Accessed May 27, 2026. https://jcim.rlsociety.org/index.php/jcim/article/view/143.