GAOL, Paltiman Lumban. PEMBENTUKAN KARAKTER PEDULI LINGKUNGAN SISWA BERPENDEKATAN PENGOLAHAN SAMPAH ORGANIK. SINERGI : Jurnal Riset Ilmiah, [S. l.], v. 2, n. 2, p. 743–751, 2025. DOI: 10.62335/sinergi.v2i2.907. Disponível em: https://manggalajournal.org/index.php/SINERGI/article/view/907.. Acesso em: 9 sep. 2026.