Hannum, Latipah, and Kurniani Nasution. “The Relationship of Family Socio-Economic Status on Student Achievement at School”. International Journal of Students Education 1, no. 2 (January 6, 2024): 496–500. Accessed July 3, 2025. https://journal.berpusi.co.id/index.php/IJoSE/article/view/509.