Lubis, Haniah, Nur Hasanah, and Madona Khairunisa. “Influence Wakif’s Understanding and Income of Interest in Waqf in PW. Salimah Riau Province”. Al-Kharaj: Journal of Islamic Economic and Business 5, no. 1 (March 5, 2023). Accessed July 22, 2024. http://ejournal.iainpalopo.ac.id/index.php/alkharaj/article/view/3612.