Adhinata, F. D., D. P. Rakhmadani, and D. Wijayanto. “Fatigue Detection on Face Image Using FaceNet Algorithm and K-Nearest Neighbor Classifier”. Journal of Information Systems Engineering and Business Intelligence, vol. 7, no. 1, Apr. 2021, pp. 22-30, doi:10.20473/jisebi.7.1.22-30.