SUJANA, I. W. . Problem Based Learning Models Helped by Student Worksheets Improve Higher Order Thinking Skills. International Journal of Elementary Education, [S. l.], v. 7, n. 2, p. 187–195, 2023. DOI: 10.23887/ijee.v7i2.61715. Disponível em: https://ejournal.undiksha.ac.id/index.php/IJEE/article/view/61715. Acesso em: 22 dec. 2024.