Mohd Abdul Aziz, A. A., Puteh, M., & Adnan, M. (2023). Development and Validating the Number and Mathematical Operations Problem-Solving Framework in the Form of Higher Order Thinking Skill (HOTS) through Bar Model Strategy - A Fuzzy Delphi Methods. Journal of Science and Mathematics Letters, 11, 1–8. https://doi.org/10.37134/jsml.vol11.sp.1.2023