Nor Sany, Nor Saiful Amierrul, and Mohd Norzali Haji Mohd. 2021. “Fatigue Detection System With Haar Cascade Classifier”. Evolution in Electrical and Electronic Engineering 2 (2): 935-42. https://penerbit.uthm.edu.my/periodicals/index.php/eeee/article/view/4566.