Ramdani, Saiful Islam, Mumuh Muhtarom, and Yuyun Yuningsih. “Implementasi Standar Operasional Prosedur (SOP) Dalam Layanan Pembatalan Jemaah Haji Di Kementerian Agama Kabupaten Sumedang”. Mabrur: Academic Journal of Hajj and Umra 4, no. 1 (March 30, 2025): 75–94. Accessed December 6, 2025. https://journal.uinsgd.ac.id/index.php/mabrur/article/view/35270.