ASTUTI, Rina. Problem Based Learning pada Pembelajaran Matematika Sekolah Dasar. Journal of Education Transportation and Business, [S. l.], v. 1, n. 2, p. 764–773, 2024. DOI: 10.57235/jetbus.v1i2.4381. Disponível em: https://rayyanjurnal.com/index.php/jetbus/article/view/4381. Acesso em: 14 jun. 2026.