Volume 40.2, Issue 80, January 1999, Pages 260-271
M.A. Farag; A. Al-Sukayran; K.S. Mazloum; A.M. Al-Bokmy
Volume 40.1, Issue 79, October 1998, Pages 23-41
M.A. Farag; A. Al-Sukayran; K.S. Mazloum; A.M. Al-Bokmy
Volume 40.1, Issue 79, October 1998, Pages 201-211
M.A. Farag; A. Al-Sukayran; K.S. Mazloum; A.M. Al-Bokmy