MURAFER, Yakobus; SAFKAUR, Terianus Luther; KOCU, Eduard Metusala Johanis; YUMAME, Jackson; SINAGA, Melpayanty. Effectiveness Of Collaborative Class Program For Civil Servants Toward Sustainable Development Goals. International Journal of Environmental, Sustainability and Social Science, [S. l.], v. 7, n. 5, p. 1276–1286, 2026. DOI: 10.38142/ijesss.v7i5.2051. Disponível em: https://journalkeberlanjutan.com/index.php/ijesss/article/view/2051. Acesso em: 26 oct. 2026.