LESTARI, P. Improving Learning Outcomes and Motivation Theme VI Sub Theme 2 Using the Problem-Based Learning Learning Model for Grade IV Students at SD Negeri Banjarsari Samigaluh 2021/2022 Academic Year. IJCER (International Journal of Chemistry Education Research), [S. l.], v. 7, n. 2, p. 81–84, 2023. DOI: 10.20885/ijcer.vol7.iss2.art7. Disponível em: https://journal.uii.ac.id/IJCER/article/view/29993. Acesso em: 14 may. 2024.