Maulid, Hariandi, Indra Azimi, Amir Hasanudin Fauzi, and Parman Sukarno. 2019. “Collaborative System for Friday Preacher Scheduling: An Overview on Two Years of Implementation”. IJAIT (International Journal of Applied Information Technology) 3 (01):24-33. https://doi.org/10.25124/ijait.v3i01.2275.