A. Rajab , Mustafa, Ekhlas I. Kader, Ali Adwan Hammod, and Abdul Hameed I. Hameed. “Mechanical Properties (Tensile, Hardness and Shock Resistance) for the Phenol Formaldehyde Resin With Epoxy Resin”. Diyala Journal of Engineering Sciences 12, no. 2 (June 1, 2019): 35–43. Accessed December 22, 2024. https://djes.info/index.php/djes/article/view/75.