Wirawijaya, I. (2022) “Teori Barang Publik Yang Sulit Diimplementasikan”, Jurnal Al Mujaddid Humaniora, 7(2), pp. 106-110. Available at: https://e-jurnal.iims.ac.id/index.php/JALHu/article/view/109 (Accessed: 21January2026).