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Kartin Usman, Abdul Wahab Abdullah, Abas Kaluku, Tristanti Anggraini Usman 2021. The Effect of Problem Based Learning Model on Students’ Mathematical Problem Solving Ability on Social Arithmetic Materials at SMP Negeri 2 Limboto. Turkish Journal of Computer and Mathematics Education (TURCOMAT). 12, 14 (Aug. 2021), 1683–1692. DOI:https://doi.org/10.17762/turcomat.v12i14.10512.