The Effect of Problem Based Learning on the Learning Achievement of Skilled Islamic Junior High School Students NM NW Pancor Kopong. INOVASIA, [S. l.], v. 1, n. 1, p. 46–51, 2022. Disponível em: https://jurnal.institutsunandoe.ac.id/index.php/inovasia/article/view/21. Acesso em: 3 feb. 2026.