HELDA, T.; ATMAZAKI; GANI, E. The Validity and Practicality of Discovery-Group Learning Models to Improve 21st Century Skills of High School Students. rEFLections, [S. l.], v. 31, n. 3, p. 1408–1433, 2024. DOI: 10.61508/refl.v31i3.277735. Disponível em: https://so05.tci-thaijo.org/index.php/reflections/article/view/277735. Acesso em: 16 sep. 2026.