“Effect of nano and micro SiO2 weight percent on interlaminar fracture toughness of woven roving/ epoxy composites”, IJP, vol. 10, no. 18, pp. 117–121, Oct. 2012, Accessed: May 15, 2024. [Online]. Available: https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/758