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“The Effect of Problem Based Learning Model on the Ability of Class V Mathematics Problem Solving SDN JATI SIDOARJO: Pengaruh Model Pembelajaran Berbasis Masalah Terhadap Kemampuan Pemecahan Masalah Matematika Kelas V SDN JATI SIDOARJO”, ijemd, vol. 10, p. 10.21070/ijemd.v10i.565, May 2020, doi: 10.21070/ijemd.v10i.565.