Handayani, S. A., M. B. Ardhana, D. Amanda, S. Syarifah, and N. Hidayat. “The Influence of GDP and Human Development Index on the Number of Poor People in Districts/Cities in North Sumatra Province”. Economic: Journal Economic and Business, vol. 4, no. 1, Jan. 2025, pp. 50-57, doi:10.56495/ejeb.v4i1.870.