F. Brethee, Khaldoon. “Free Vibration Analysis of Clamped Laminated Composite Plates With Centeral Crack”. Anbar Journal of Engineering Science 12, no. 1 (May 15, 2021): 108–115. Accessed July 7, 2025. https://ajes.uoanbar.edu.iq/index.php/ajes/article/view/531.