Andeski, M. Khaikal, Zulgani Zulgani, and Putri Intan Suri. 2026. “Determination Of Development Inequality Between Regions On The Island Of Sumatra”. ProBisnis : Jurnal Manajemen 17 (03):1379-88. https://www.ejournal.joninstitute.org/index.php/ProBisnis/article/view/1541.