YULIANTO, Eko. KARAKTER PRO-LINGKUNGAN: 3S PLUS 6R MENUJU INSAN "NGERTI-NGERASA-NGELAKONI". Jurnal Pembangunan Pendidikan: Fondasi dan Aplikasi, [S. l.], v. 4, n. 1, p. 24–29, 2016. DOI: 10.21831/jppfa.v4i1.12116. Disponível em: https://journal.uny.ac.id/index.php/jppfa/article/view/12116. Acesso em: 9 may. 2025.