CHUMSUKON, M. The Development of Problem Solving Skills through Problem-Based Learning in Economics in School Course. International Journal of Emerging Issues in Early Childhood Education, [S. l.], v. 1, n. 1, p. 33–40, 2020. DOI: 10.31098/ijeiece.v1i1.43. Disponível em: https://jurnal-fkip.ut.ac.id/index.php/ijeiece/article/view/43. Acesso em: 19 sep. 2024.