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  <div class="csl-entry">Shinta, Putri, Sakur, and Susda Heleni. “Implementing the Problem-Based Learning Model to Improve students’ Mathematical Problem-Solving Ability”. <i>Jurnal Absis: Jurnal Pendidikan Matematika dan Matematika</i> 7, no. 2 (December 30, 2024): 300–309. Accessed January 12, 2025. http://journal.upp.ac.id/index.php/absis/article/view/2668.</div>
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