YOSHA SHEPTIA; HAFIZIANI EKA PUTRI; ALFIANA NURUSSAMA. The Effect of Problem-Based Learning Model Assisted by Puzzle Media on Elementary Students’ Mathematical Problem-Solving Ability. Mathline : Jurnal Matematika dan Pendidikan Matematika, [S. l.], v. 11, n. 2, p. 491–504, 2026. DOI: 10.31943/mathline.v11i2.1152. Disponível em: https://mathline.unwir.ac.id/index.php/Mathline/article/view/1152. Acesso em: 23 jun. 2026.