Aelewe, M. K., and A. R. Ahmed. “Study of Mechanical and Physical Properties of Epoxy Resins Supported by Natural Materials”. JOURNAL OF UNIVERSITY OF BABYLON for Pure and Applied Sciences, Vol. 27, no. 4, May 2019, pp. 66 -71, https://www.journalofbabylon.com/index.php/JUBPAS/article/view/2320.