ARDANI, R. A. S.; AMARAL, L. P. Is Problem Based Learning Assisted by Pop Up Book Effective in Improving Problem Solving Ability and Attitude of Curiosity?. Elementary Education Journal, [S. l.], v. 1, n. 2, p. 104–111, 2022. DOI: 10.53088/eej.v1i2.244. Disponível em: https://journal.nurscienceinstitute.id/index.php/eej/article/view/244. Acesso em: 14 jun. 2025.