Purwantara, suhadi. “SULITNYA MEMBANGUN DISIPLIN MASYARAKAT (HOW DIFFICULTY TO DEVELOP PEOPLE DISCOPLINE)”. Informasi 36, no. 2 (June 5, 2010). Accessed May 19, 2026. https://jurnal.uny.ac.id/index.php/informasi/article/view/6200.