Desai Ghata Sanjeevkumar and Pankaj Kumar Gautam (2015) “Various Techniques for Facial Detection and Expression Classification”, International Journal of Advance Engineering and Research Development (IJAERD), 2(4), pp. 139–143. Available at: https://ijaerd.org/index.php/IJAERD/article/view/605 (Accessed: 7 July 2025).