Rizqi Aulia, Putri Ayu, and Andi Triyawan. “The Role Of Productive Waqf In Promoting Sustainable Economic Development In The Gontor Ecosystem”. El-kahfi | Journal of Islamic Economics 6, no. 02 (September 30, 2025): 445 - 453. Accessed November 17, 2025. https://www.ejournal.mannawasalwa.ac.id/index.php/elkahfi/article/view/574.