SIAHAAN, Afriani Yuli Br.; MARBUN, Yanty Maria R; PURBA, Yoel Octobe. Peningkatan Kemampuan Literasi Matematis Siswa Melalui Model Problem Based Learning (PBL) . PIJAR: Jurnal Pendidikan dan Pengajaran , [S. l.], v. 4, n. 1, p. 408–419, 2025. DOI: 10.58540/pijar.v4i1.1408. Disponível em: https://putrapublisher.org/index.php/pijar/article/view/1408. Acesso em: 27 apr. 2026.