Mohd Effendi Ewan Mohd Matore, Faustina Roberts, Azlina Abdul Aziz,. 2020. “Malaysian Teachers’ Perceptions on Cambridge English Textbook Evaluation Checklist for Materials Adaptation: A Preliminary Study”. International Journal of Advanced Science and Technology 29 (3), 2020 -30. https://sersc.org/journals/index.php/IJAST/article/view/4204.