Volume 69, Issue 1, January 2018, Pages 73-84
M. B. A. El- Koomy; Maha M. G. Balba; A. K. Mostafa; Hoda E.A. Ibrahim
Volume 58, Issue 4, October 2007, Pages 239-243
M. E. El-Sharnouby; A. A. Mostafa; E. Ragab