Volume 63, Issue 152, January 2017, Pages 1-7
EYAD ALNAJJAR; MOHAMMAD ALI ALEMADI
Volume 58, Issue 135, October 2012, Pages 143-148
R.W. DARWISH; U. TURKMANE
Volume 41.1, Issue 81, April 1999, Pages 113-126
S.A. Sotohy; A.A. Mohamed