AbdulRazaq, Jaafar Shareef, and Abdul Kareem F. Hassan and Nuha Hadi Jasim Al Hasan. 2023. “Epoxy–Silica Functionally Graded Materials: A Review”. Basrah Journal for Engineering Sciences 23 (2): 26-33. https://doi.org/10.33971/bjes.23.2.4.