Mohd Abdul Aziz, Azrul Azwan, Marzita Puteh, and Mazlini Adnan. “Development Of Self-Use Module For The Problem-Solving Framework Of The Number And Mathematical Operations In The Form Of Higher Order Thinking Skill (HOTS) Using The Bar Model”. Journal of Science and Mathematics Letters 11 (November 9, 2023): 34–44. Accessed November 24, 2024. https://ejournal.upsi.edu.my/index.php/JSML/article/view/8739.