Ying Leh, Alan Ling. 2010. “Kemahiran Metakognitif Pelajar Kejuruteraan Dalam Menyelesaikan Masalah Matematik Kejuruteraan: Metacognitive Skills in Mathematical Engineering Problem Solving Among Engineering Students”. Journal of Science and Mathematics Letters 2 (2):75-84. https://ojs.upsi.edu.my/index.php/JSML/article/view/449.