Fentari, Retno, and Wahid Dalail. “Social Entrepreneurship in Islamic Educational Institutions: Financial Independence Strategy at Darussalam Gontor Islamic Boarding School”. Zawayatul Fikr: Journal of Islamic Education 1, no. 2 (December 31, 2025): 191–202. Accessed April 19, 2026. https://zawayatulfikr.shibghoh.id/index.php/zafie/article/view/21.