BUJANG, S. A. A. N.; MOHD NOOR, N. N. Kesan Pembelajaran Berasaskan Masalah (PBM) bagi Topik Ekosistem Terancam Subjek Biologi terhadap Pemikiran Kritis Pelajar: The Effect of Problem-Based Learning (PBL) for Topic of Endangered Ecosystems in Biology Towards Students’ Critical Thinking. Journal of Science and Mathematics Letters, [S. l.], v. 2, p. 54–62, 2014. Disponível em: https://ejournal.upsi.edu.my/index.php/JSML/article/view/417. Acesso em: 23 apr. 2024.