Pages 39-55
Rawia M. Ibrahim; Yahia A. Amin; Ibrahim F. Rehan; frantisek zigo; Zuzana Farkašová; Safaa Y. Nour
Pages 71-85
Hanaa Gamal Abo Bakr; Mahmoud A.Z.; Sotohy A. Sotohy; Fatma Abo Zakaib Ali