S. Merdaci, H. Belghoul, A. Hadj Mostefa, M. Merazi, H. Hellal and S. Boutaleb 2020. Free Vibration Analysis of Advanced Composite Plates with Porosities. Algerian Journal of Research and Technology (AJRT). 4, 2 (Sep. 2020), 13–23. DOI:https://doi.org/10.58681/ajrt.20040202.