Volume 36, April-June, June 2015, Pages 157-162
N.A. Alkenani; KH. M. AL-Ghamdi; M.S. Saleh; J.A. Mahyoub
Volume 35, OCTOBER- DECEMBER, December 2014, Pages 256-262
A. A. Almadiy; M.S. Saleh; A.A. Alsagaf