Volume 26, Issue 1, June 2019, Pages 9-21
Mabrouk E.A.; Ali K.M.; Nermeen A. Helmy; Rehab M. Reda
Volume 22, Issue 1, March 2013, Pages 99-104
M. Abdel Fattah; Nermeen A. Helmy; S. S. Ibrahim
Volume 21, Issue 1, March 2011, Pages 44-50
Saadia A. Ali; Nermeen A. Helmy; B. R. Abdel-Halim