S. Saravanan , K. Ranjith , Dr.G.Dalin. “Facial Expression Recognition Using Improved Artificial Bee Colony Algorithm”. International Journal of Emerging Trends in Science and Technology 4, no. 08 (August 30, 2017): 5669–5675. Accessed December 23, 2024. http://ijetst.in/index.php/ijetst/article/view/1320.