Volume 7, Issue 1, June 1982, Pages 1-7
Rasheed M. El-Awady; Fayez Wanis Zaky Soliman; F. A. Abouelfotouh; M. M. Abd El-Naby
Volume 6, Issue 2, December 1981, Pages 63-69
Rasheed M. El-Awady; F. A. Abouelfotouh; M. M. Abd-Elnaby