DJIDU, H.; JAILANI, J.; RETNAWATI, H. Higher-order thinking skills among male and female students: An experimental study of the problem-based calculus learning model in secondary schools. Beta: Jurnal Tadris Matematika, [S. l.], v. 14, n. 2, p. 107–125, 2021. DOI: 10.20414/betajtm.v14i2.432. Disponível em: http://jurnalbeta.ac.id/index.php/betaJTM/article/view/432. Acesso em: 17 apr. 2026.