Volume 31, Issue 1, January 2017, Pages 58-71
Shehata S.A.; O.K. Ahmed; H.M. Abd El-All; M.A F Mahmed; K.F Abd El- Gawad
Volume 30, Issue 1, January 2016, Pages 93-110
Shehata S.A.; Manal M. Attia; Mohamed M.E