Ibad, M. N. “Digital Communication Management in Hajj and Umrah Services: A Systematic Literature Review on the Transformation of Services for Muslim Pilgrims in the Era of Platformization”. Miqat: Journal of Islamic Management, vol. 1, no. 1, May 2026, pp. 12-25, https://ejournal.uiidalwa.ac.id/index.php/miqat/article/view/4850.