Rustyani, S., & Rosyidi, S. (2018). Measurement of Efficiency and Productivity of Zakat Institutions in Indonesia using Data Envelopment Analysis and the Malmquist Productivity Index: International Journal of Zakat | ISSN: 2548 2335 | Vol. 3 (3) 2018. International Journal of Zakat, 3(3), 69–82. https://doi.org/10.37706/ijaz.v3i3.98