Shida, Nurul, Abdul Halim Abdullah, Sharifah Osman, and Norulhuda Ismail. “Validation of Mathematics Test to Assess Polytechnic Students’ Problem Solving”. Mathematics Education Journal 17, no. 2 (October 15, 2024): 265–278. Accessed May 23, 2025. https://jpm.ejournal.unsri.ac.id/index.php/jpm/article/view/175.