1. 1. G. Giannakakis, D. Manousos, F. Chiarugi, “Stress and anxiety detection using facial cues from videos,” Biomedical Signal processing and Control”, vol. 31, pp. 89-101, January 2017.
   2. Nisha Raichur, Nidhi Lonakadi, Priyanka Mural, “Detection of Stress Using Image Processing and Machine Learning Techniques”, vol.9, no. 3S, July 2017.
   3. U. S. Reddy, A. V. Thota and A. Dharun, "Machine Learning Techniques for Stress Prediction in Working Employees," 2018 IEEE International Conference on Computational Intelligence and Computing Research (ICCIC), Madurai, India, 2018, pp. 1-4.
   4. T. Jick and R. Payne, “Stress at work,” Journal of Management Education, vol. 5, no. 3, pp. 50-56, 1980
   5. Bhattacharyya, R., &Basu, S. (2018). Retrieved from „The Economic Times‟. ACT Australia Nat Univ.,Canberra. “Eye movement analysis for depression detection”.