Agusman, Agusman, Purwanto Purwanto, and Rustanto Rahardi. “An Exploration of Critical Thinking Stages of Junior High School Students in Solving Contradictory Mathematical Problems”. JRAMathEdu (Journal of Research and Advances in Mathematics Education) 10, no. 3 (July 31, 2025): 200–217. Accessed November 16, 2025. https://journals2.ums.ac.id/jramathedu/article/view/8911.