Marifatun, M., Sulistyorini, S., & Ahmadi, F. (2018). The Effectiveness of the Problem Based Learning Model Assisted by Interactive CD on Mathematical Problem Solving Ability Reviewed from Students’ Cognitive Style. Innovative Journal of Curriculum and Educational Technology, 7(2), 78-85. https://doi.org/10.15294/ijcet.v7i2.29103