Das, T., and J. K Nath. “Efficient Zigzag Theory for Static and Free Vibration Response of Rectangular FGM Panels”. International Journal of Engineering and Technology 7, no. 4.39 (December 13, 2018): 94–104. Accessed August 16, 2025. https://mail.sciencepubco.com/index.php/IJET/article/view/23817.