Danuri, Danuri, Taufik Muhtarom, Wahyu Wulandari, and Padrul Jana. 2020. “Development of Multiplication and Division Concept Learning Media to Increase Student’s Problem Solving Skill and Learning Interest”. International Journal on Emerging Mathematics Education 4 (1):1-10. https://doi.org/10.12928/ijeme.v4i1.15764.