Volume 59, Issue 138, July 2013, Pages 155-160
A.G.A. BULLDAN; H.I. SERI; S.E. SULIMAN; G.E. MOHAMMED
Volume 59, Issue 137, April 2013, Pages 1-8
M.I. FANGAMA; H.I. SERI; S.E. SULIMAN; S.M.A. IMAM; E.A. MOZAMEL
Volume 58, Issue 134, July 2012, Pages 1-4
G.A.K. GABEER; S.E. SULIMAN; A. GHALI; M.A. ABDALLA