Dermawan, F., Samri Juliaty Nasution, Y., & Harmain, H. (2023). Managing Zakat Funds Using the DEA Method: Baznas Sumut Efficiency Analysis. Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE), 6(3), 1553-1570. https://doi.org/10.31538/iijse.v6i3.3874