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  <div class="csl-entry"><div class="csl-left-margin">[1]</div><div class="csl-right-inline">P. Shinta, Sakur, and S. Heleni, “Implementing the problem-based learning model to improve students’ mathematical problem-solving ability”, <i>JA</i>, vol. 7, no. 2, pp. 300–309, Dec. 2024.</div></div>
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