JAILANI, Jailani; SUGIMAN, Sugiman; APINO, Ezi. Implementing the problem-based learning in order to improve the students’ HOTS and characters. Jurnal Riset Pendidikan Matematika, [S. l.], v. 4, n. 2, p. 247–259, 2017. DOI: 10.21831/jrpm.v4i2.17674. Disponível em: https://jurnal.uny.ac.id/index.php/jrpm/article/view/17674. Acesso em: 8 jun. 2025.