ZACHARIASZ, Robert. Perbedaan Pengetahuan Ibu-Ibu Tentang Isu-Isu Lingkungan Antara Strategi Penyuluhan Out Group Versus in Group Berdasarkan Kepedulian Lingkungan. IJEEM - Indonesian Journal of Environmental Education and Management, [S. l.], v. 1, n. 2, p. 27–44, 2017. DOI: 10.21009/IJEEM.012.03. Disponível em: https://journal.unj.ac.id/unj/index.php/ijeem/article/view/3705. Acesso em: 6 nov. 2024.