Jr, A. V. P., L. P. Patac, and N. E. C. Jr. “Students’ Understanding of a Geometric Theorem: A Case of Grade 9 Problem Posing”. JRAMathEdu (Journal of Research and Advances in Mathematics Education), vol. 7, no. 2, Apr. 2022, pp. 105-1, doi:10.23917/jramathedu.v7i2.16394.