Zulkpli, Zulhelmi, Mohini Mohamed, and Abdul Halim Abdullah. “Assessing Mathematics Teachers’ Knowledge in Teaching Thinking Skills”. Sains Humanika 9, no. 1-4 (January 31, 2017). Accessed May 6, 2024. https://sainshumanika.utm.my/index.php/sainshumanika/article/view/1129.