Batubara, Randi Hadamean, and Utary Evy Cahyani. “The Contribution of ZIS (Zakat, Infaq, & Sadaqah) to Poverty Alleviation in North Sumatra Province”. Islamic Economics Methodology 3, no. 1 (September 18, 2024). Accessed October 26, 2025. http://journals.smartinsight.id/index.php/IEM/article/view/530.