KEVIN MARTIN; NATALINA PURBA; LISBET NOVIANTI SIHOMBING. Effect of Problem Based Learning on Student Learning Outcomes on Theme 2 Clean Air for Health Subtheme 1 the Body’s Way of Processing Clean Air Class V SD Negeri 4 Suhutnihuta Pardomuan. Indonesian Journal of Advanced Research, [S. l.], v. 2, n. 11, p. 1465–1476, 2023. DOI: 10.55927/ijar.v2i11.6616. Disponível em: https://journal.formosapublisher.org/index.php/ijar/article/view/6616. Acesso em: 19 sep. 2024.