Improving fifth- grade students’ learning outcomes using problem-based learning model in the integrated thematic learning. JOURNAL OF TEACHING AND LEARNING IN ELEMENTARY EDUCATION (JTLEE), [S. l.], v. 6, n. 2, p. 122–128, 2023. DOI: 10.33578/. Disponível em: https://jtlee.ejournal.unri.ac.id/index.php/JTLEE/article/view/216. Acesso em: 14 sep. 2025.