Volume 33, Issue 2-B, December 2022, Pages 71-83
Ramy Mawad; Hanafy M. Madbouly; Ehab M. B. Mahdy
Volume 24, Issue 2-D, December 2013, Pages 25-43
M.H. AWAD; G.A. AL NADEEM; ,S.A SAMEEH; A.R HEMEID