Volume 2, Issue 3.4, May 1975, Pages 167-180
Y. Y. Kamel; A. A. Ismail; A.A. Ahmed; T.H. Moustafa; M.S. Mahmoud
Volume 2, Issue 3.4, May 1975, Pages 217-223
Samira, M. El-Gibaly; E.M. Sayour; A.D. Khalil; M.S. Mahmoud