Alaluosi, Wasan. Maddah. “Recognition of Human Facial Expressions Using DCT-DWT and Artificial Neural Network”. Iraqi Journal of Science 62, no. 6 (July 1, 2021): 2090-2098. Accessed October 25, 2021. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/2471.