Moertini, Veronica S., Vania Natali, Edo F. Haryanto, and Dearen Hippy. “Developing Information System for Managing and Booking Rooms and Facilities in a Retreat House”. Journal of Innovation and Community Engagement 5, no. 4 (November 28, 2024): 220–235. Accessed June 13, 2025. http://114.7.153.31/index.php/ice/article/view/9472.