Rashidah Mokhtar , Nur Huda Jaafar , Mohd Hanafi Azman Ong , Zuriati Ismail , Mazlyda Abd Rahman, “Validity Assessment of Technology Readiness Index Using Exploratory Factor Analysis and Nomology Analysis: Perspective from Academician for Education 4.0 Tools”, IJAST, vol. 29, no. 10s, pp. 758 - 766, May 2020.