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Purba, A.L. and Simanjorang, M.M. 2023. Application of the Jigsaw Cooperative Learning Model to Improve the Mathematical Problem Solving Ability of Class VIII-3 Students of SMP Negeri 5 Pematang Siantar Academic Year 2022/2023. Asian Journal of Applied Education (AJAE). 2, 1 (Jan. 2023), 17–26. DOI:https://doi.org/10.55927/ajae.v2i1.2620.