Dr. Mukesh Patel. “Neural Network Based Recognition of an Emotion Using PCA of Leg Postures of a Human Being”. International Journal of Advance Engineering and Research Development (IJAERD) 5, no. 4 (April 25, 2018): 34–41. Accessed July 5, 2025. https://www.ijaerd.org/index.php/IJAERD/article/view/3009.