Yosha Sheptia, Hafiziani Eka Putri, and 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 11, no. 2 (May 31, 2026): 491–504. Accessed June 23, 2026. https://mathline.unwir.ac.id/index.php/Mathline/article/view/1152.