, Divya R. Kushwah, Dr. Devang Pandya. “A Review on Facial Expression Recognition Techniques”. International Journal on Future Revolution in Computer Science & Communication Engineering 3, no. 11 (November 30, 2017): 560–567. Accessed April 29, 2024. http://www.ijfrcsce.org/index.php/ijfrcsce/article/view/348.