DIFINUBUN, Fajria Ahmad; MAKMURI, Makmuri; HIDAYAT, Flavia Aurelia. Preliminary Study On The Development of Project-Based Learning Module to Improve Students’ Mathematical Problem Solving Ability. Mathline : Jurnal Matematika dan Pendidikan Matematika, [S. l.], v. 9, n. 2, p. 605–628, 2024. DOI: 10.31943/mathline.v9i2.638. Disponível em: http://mathline.unwir.ac.id/index.php/Mathline/article/view/638. Acesso em: 17 jan. 2026.