Aditiyanto Ekaputra, Adriana Madya Marampa, and Ibrahim Mallam Fali. “Assessing the Role of Social Protection Expenditure on Income Inequality and Human Development Index Levels”. Global Economics: International Journal of Economic, Social and Development Sciences 1, no. 3 (September 30, 2024): 41–52. Accessed March 3, 2026. https://economics.ifrel.org/index.php/GlobalEconomics/article/view/406.