Pingpor, P., and W. . Yonwilad. “Improving students’ Geometric Mathematical Problems through the GeoGebra-Assisted ‘5E’ Learning Cycle”. JRAMathEdu (Journal of Research and Advances in Mathematics Education), vol. 8, no. 2, Apr. 2023, doi:10.23917/jramathedu.v8i2.1635.