KINANTI, Sekar; REJEKI, Sri. A Problem-Based Learning Worksheet: An Effort to Support Students’ Critical Thinking Skills on Cartesian Coordinates Topic. Mathline : Jurnal Matematika dan Pendidikan Matematika, [S. l.], v. 8, n. 2, p. 545–568, 2023. DOI: 10.31943/mathline.v8i2.423. Disponível em: https://mathline.unwir.ac.id/index.php/Mathline/article/view/423. Acesso em: 24 dec. 2025.