Design a Landmark Facial-Based Drowsiness Detection Using Dlib And Opencv For Four-Wheeled Vehicle Drivers - Noor Reza, Muhammad Alvin; Zaki Hamidi, Eki Ahmad; Ismail, Nanang; Effendi, Mufid Ridlo; Mulyana, Eeueung; Shalannanda, Wervvan (2021 15th International Conference on Telecommunication Systems, Services, and Applications (TSSA), Telecommunication Systems, Services, and Applications (TSSA), 2021 15th International Conference on, 2021)