Volume 45, Issue 3, May 2018, Pages 995-1001
Nashat E.M. El-Sayeh; S. S. Elsaadany; R. A. Elmassry; H. T.M. Hefnawy
Volume 44, Issue 4, July 2017, Pages 1417-1420
Ahmed M.M. Helal; S. S. Elsaadany; R. A. Elmassry; H. T. Mansour