Oktaviani, Nia, and Siti Sauda. “Pemodelan Dan Implementasi Aplikasi Mobile Umrah Guide Menggunakan Unified Modeling Language”. Jurnal Sains dan Informatika 5, no. 2 (December 9, 2019): 177–186. Accessed July 3, 2026. https://jsi.politala.ac.id/index.php/JSI/article/view/184.