Atika, R., M. Fakhriza and Muhamad Alda 2025. Design and Development of a Mobile Based Reservation System for Muslims in Medan. JURNAL TEKNOLOGI DAN OPEN SOURCE. 8, 2 (Dec. 2025), 1186 - 1194. DOI:https://doi.org/10.36378/jtos.v8i2.5098.