Kaewfoongrungsi, P., and D. Hormdee. “Improving EASI Model via Machine Learning Techniques and Regression Techniques”. Journal of Telecommunication, Electronic and Computer Engineering (JTEC), vol. 10, no. 1-5, Feb. 2018, pp. 115-20, https://jtec.utem.edu.my/jtec/article/view/3641.