Widodo SA, Pangesti AD, Pangesti I, Kuncoro KS, Arigiyati TA. Thinking Process of Concrete Student in Solving Two-Dimensional Problems. j. pend. mat. [Internet]. 2020 Jul. 31 [cited 2024 Nov. 21];14(2):117-28. Available from: https://jpm.ejournal.unsri.ac.id/index.php/jpm/article/view/135