Akhmadi, Slamet. “The Contribution of Waqf in Overcoming Agrarian Problems: A Study of Hadith”. International Journal of Social Science and Religion (IJSSR) 3, no. 3 (July 4, 2022): 159–170. Accessed June 27, 2026. http://www.ijssr.net/index.php/ijssr/article/view/63.