JIHAN DEANA SAFITRI; YOSI GUMALA. Effectiveness of Group Discussion Method to Improve 21st Century Learning Skills of Elementary School Students. Amandemen: Journal of Learning, Teaching and Educational Studies, [S. l.], v. 3, n. 1, p. 35–43, 2025. DOI: 10.61166/amd.v3i1.77. Disponível em: https://amandemen.my.id/index.php/i/article/view/77. Acesso em: 26 oct. 2025.