Volume 60, Issue 140, January 2014, Pages 128-132
EL-DOSOKY, H.F.A.; SANYA, T. EL-GHAMRY; AZZA, E.A. HASSAN
Volume 59, Issue 138, July 2013, Pages 55-59
EL-DOSOKY, H.F.A.; SHAFIK, S.; BAHER, M. WEAM