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  <div class="csl-entry"><div class="csl-left-margin">1.</div><div class="csl-right-inline">Safrita H, Siregar SN, Murni A. Improving students’ mathematical representation ability through problem-based learning model . JA [Internet]. 2024 Dec. 30 [cited 2025 Jan. 12];7(2):207-1. Available from: http://journal.upp.ac.id/index.php/absis/article/view/2637</div></div>
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