Maulana, Waleed. “Development and Analysis of a Unified Mobile App for Coffee Shop Operations and Ordering Experience: A Proposal Review”. International Journal of Information Technology and Computer Science Applications 1, no. 3 (September 10, 2023): 161–173. Accessed November 21, 2025. http://ejurnal.jejaringppm.org/index.php/jitcsa/article/view/52.