Khamami, Akhmad. “Paradigma Dakwah Islam Fethullah Gulen Di Abad Kontemporer”. ISLAMICA: Jurnal Studi Keislaman 12, no. 2 (November 29, 2018): 358-383. Accessed January 19, 2019. http://islamica.uinsby.ac.id/index.php/islamica/article/view/454.