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  <div class="csl-entry">Shinta, P., Sakur and Heleni, S. (2024) “Implementing the problem-based learning model to improve students’ mathematical problem-solving ability”, <i>Jurnal Absis: Jurnal Pendidikan Matematika dan Matematika</i>, 7(2), pp. 300–309. doi: 10.30606/absis.v7i2.2668.</div>
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