ARNASARI, A.; HARDINI, A. T. A. INCREASING THE 4th GRADE STUDENTS SCIENCE COMPETENCY THROUGH PROBLEM BASED LEARNING MODEL. Jurnal Pendidikan dan Pengajaran, [S. l.], v. 50, n. 2, p. 52–59, 2017. DOI: 10.23887/jpp.v50i2.11651. Disponível em: https://ejournal.undiksha.ac.id/index.php/JPP/article/view/11651. Acesso em: 1 may. 2024.