Sarwan, Sarwan. “Peran Tokoh Informal Dalam Meningkatkan Mutu Pendidikan Umat Di PP. An-Nuriyah Kaliwining Rambipuji Jember: The Role of Informal Leaders in Enhancing the Quality of Community Education at An-Nuriyah Islamic Boarding School, Kaliwining, Rambipuji, Jember”. Fenomena 5, no. 2 (July 11, 2006): 83–92. Accessed December 20, 2025. https://fenomena.uinkhas.ac.id/fenomena/article/view/393.