by El-Gammal, A.A, Mansour, R.M.A
Published in Zentralblatt für Mikrobiologie (1986)

by Kansoh, A L, M-Ali, A, A-el-Gammal, A
Published in Acta microbiologica et immunologica Hungarica (2001)

by Abd El-Nasser, Nadia H., Helmy, Samia M., El-Gammal, Amira A.
Published in Polymer degradation and stability (01.01.1997)

by El-Gammal, Amira A., Kamel, Zeinat, Adeeb, Zenat, Helmy, Samia Mohamed
Published in Polymer degradation and stability (1998)