Marpaung, Riky Aulia Rachman, et al. “Analysis of The Effect of Unemployment Rate and Human Development Index On Poverty In The Province of North Sumatra”. Outline Journal of Economic Studies, vol. 1, no. 1, Mar. 2022, pp. 51-61, https://journal.outlinepublisher.com/index.php/OJES/article/view/74.