Wiga Ayu Desmanita, Ahmad Syaifullah, and Inne Miftah Dewi. 2026. “Regional Economic Efficiency In South Sumatera, 2024-2025: A DEA Approach”. Indonesian Journal of Multidisciplinary Sciences (IJoMS) 5 (1):659-76. https://doi.org/10.59066/ijoms.v5i1.2446.