Gunawan, G., Nisa, I. ., Untarti, R. ., Kusuma, J. W. ., Purwanto, J. ., & Susri, S. (2024). APPLICATION OF THE CONTEXTUAL TEACHING AND LEARNING MODEL THROUGH TEACHING AT THE RIGHT LEVEL ASSISTED BY CONCRETE MEDIA TO IMPROVE MATHEMATICAL PROBLEM-SOLVING SKILLS. International Journal of Economy, Education and Entrepreneurship (IJE3), 4(3), 616–623. https://doi.org/10.53067/ije3.v4i3.299