Budhy Nagara, Khaerul, and Rusma Rizal. “The Burden of Education Costs for the Middle Class in Indonesia: An Analysis of Challenges and Implications”. Jurnal Serambi Ilmu 26, no. 2 (September 30, 2025): 153–164. Accessed December 2, 2025. https://jurnal.serambimekkah.ac.id/index.php/serambi-ilmu/article/view/3766.