RAHMAWATI, Nur Ita; CINTAMULYA, Imas. Validity of e-modules integrated with game-based problem-based learning to improve 21st century skills in Biology learning. Biosfer: Jurnal Pendidikan Biologi, [S. l.], v. 18, n. 1, p. 103–114, 2025. DOI: 10.21009/biosferjpb.49262. Disponível em: https://journal.unj.ac.id/unj/index.php/biosfer/article/view/49262. Acesso em: 3 apr. 2025.