Zuhdi, Ahmad, and Ivan Sunata. “Kolaborasi Dakwah Ulama Dan Umara Dalam Perspektif Islam”. Ishlah: Jurnal Ilmu Ushuluddin, Adab dan Dakwah 2, no. 1 (April 8, 2020): 32-50. Accessed August 14, 2020. https://jurnalfuad.org/index.php/ishlah/article/view/12.