ISA, Muhammad. Pengaruh Model Problem Based Learning (PBL) Terhadap Hasil Belajar Ekonomi. Journal of Social Knowledge Education (JSKE), [S. l.], v. 1, n. 3, p. 70–73, 2020. DOI: 10.37251/jske.v1i3.357. Disponível em: https://cahaya-ic.com/index.php/JSKE/article/view/357. Acesso em: 7 jun. 2026.