Mahdar , Nasrullah. “INCREASE MUZAKI LOYALTY TO THE ZAKAT, INFAQ, AND SHADAQAH MUHAMMADIYAH INSTITUTIONS IN INDONESIA”. Dinasti International Journal of Management Science 2, no. 2 (November 5, 2020): 162–173. Accessed April 28, 2026. https://www.dinastipub.org/DIJMS/article/view/577.