H. . M. . Abdullah, “Hard and Tough Epoxy Resins Modified with Thermosetting Materials”, IHJPAS, vol. 18, no. 3, pp. 78–88, Jun. 2019, Accessed: Mar. 31, 2025. [Online]. Available: https://jih.uobaghdad.edu.iq/index.php/j/article/view/2225