SIMATUPANG, E. C.; SILITONGA, M.; RAJAGUKGUK, S. H. Students’ critical thinking skills on human respiratory system material in flipped classroom. JPBI (Jurnal Pendidikan Biologi Indonesia) , [S. l.], v. 9, n. 3, p. 387–393, 2023. DOI: 10.22219/jpbi.v9i3.26841. Disponível em: https://ejournal.umm.ac.id/index.php/jpbi/article/view/26841. Acesso em: 9 jun. 2026.