KARWANA, M. A. P.; PRATIWI, W. D. Algebraic thinking ability of grade VIII students using a Problem-Based Learning (PBL). Jurnal Gantang, [S. l.], v. 8, n. 2, p. 199–205, 2023. DOI: 10.31629/jg.v8i2.6640. Disponível em: https://ojs.umrah.ac.id/index.php/gantang/article/view/6640. Acesso em: 22 dec. 2024.