S. A. Aziz and R. Ahmad, “Konsep Al-Darurah Dalam Akad Tawarruq Menurut Maqasid Al-Kulliyah: Satu Kajian Awal (Al-Darurah Concept In Tawarruq Akad According to Maqasid Al-Kulliyah: An Initial Study)”, UMRAN, vol. 5, no. 2, Jul. 2018.