Jr AVP, Patac LP, Jr NEC. Students’ understanding of a geometric theorem: A case of grade 9 problem posing. J.Res.Adv.Math.Educ [Internet]. 2022 Apr. 30 [cited 2025 Nov. 17];7(2):105-1. Available from: https://journals2.ums.ac.id/jramathedu/article/view/9531