Batubara, Ade Andriani, and Haddad Alwi. “Analysis of Factors Affecting the Number of Poor People in South Tapanuli Regency, North Sumatra 2010-2022”. Outline Journal of Economic Studies 3, no. 1 (March 31, 2024): 17–27. Accessed June 20, 2026. https://journal.outlinepublisher.com/index.php/OJES/article/view/69.