Ndemo, Zakaria, and David K. J. Mtetwa. “Student teachers’ Conceptualizations of Mathematical Problem Solving and the Nature of Their Warrants”. JRAMathEdu (Journal of Research and Advances in Mathematics Education) 7, no. 4 (October 30, 2022): 253–272. Accessed January 9, 2026. https://journals2.ums.ac.id/jramathedu/article/view/9582.