Harahap, Aziddin, Hasmi Syahputra Harahap, and Arman Harahap. “The Law Of Riba Money Is Used For The Hajj Worship”. International Journal Of Community Service 3, no. 3 (August 31, 2023): 132–137. Accessed April 26, 2025. https://www.ijcsnet.id/index.php/go/article/view/202.