Galal, M., A. G. Ismail, N. Omar, M. Zaazou, and M. A. Nassar. “Influence of Thermomechanical Treatment on the Mechanical Behavior of Protaper Gold Versus Protaper Universal (A Finite Element Study)”. Open Access Macedonian Journal of Medical Sciences, vol. 7, no. 13, July 2019, pp. 2157-61, doi:10.3889/oamjms.2019.552.