SRIWATI, I. G. A. P. . Penerapan model pembelajaran problem based learning untuk meningkatkan hasil belajar matematika siswa. Indonesian Journal of Educational Development (IJED), [S. l.], v. 2, n. 2, p. 302–313, 2021. DOI: 10.5281/zenodo.5244635. Disponível em: https://ojs.mahadewa.ac.id/index.php/ijed/article/view/1218. Acesso em: 18 sep. 2025.