The effect of problem based learning (PBL) model on fourth-grade students’ learning outcomes of data presentation. JOURNAL OF TEACHING AND LEARNING IN ELEMENTARY EDUCATION (JTLEE), [S. l.], v. 6, n. 1, p. 46–56, 2023. DOI: 10.33578/. Disponível em: https://jtlee.ejournal.unri.ac.id/index.php/JTLEE/article/view/208. Acesso em: 14 sep. 2025.