Mohd Noor, Norashady, Muhammad Aziz Shah Mohamed Arip, Eftah Moh @ Hj Abdullah, and Haniza Yon. 2019. “Measuring the Content Validity of MEPI Using Content Validity Ratio”. Journal of ICT in Education 3 (June):81-88. https://ojs.upsi.edu.my/index.php/JICTIE/article/view/2610.