by Sharma, J.S, Hefny, A.M, Zhao, J, Chan, C.W
Published in Tunnelling and underground space technology (01.04.2001)

by El-Hefny, A.M., Khalil, Ola A.A., Hassan, Yousra E., Mounir, Amr M.
Published in Journal of radiation research and applied sciences (01.06.2022)

by Zhao, X.B., Zhao, J., Cai, J.G., Hefny, A.M.
Published in Computers and geotechnics (2008)

by Ashmawy, Ahmed M., EL Hefny, Nour Eldeen A.M, Nasr, Hayam, Mahran, Zainab Gaber, Abozaid, Mohamed A.A., Ali, Wageeh A.
Published in The Egyptian journal of hospital medicine (01.04.2022)

by Gong, Q.M., Zhao, J., Hefny, A.M.
Published in Tunnelling and underground space technology (01.05.2006)

by Zhao, J., Hefny, A.M., Zhou, Y.X.
Published in International journal of rock mechanics and mining sciences (Oxford, England : 1997) (01.06.2005)

by Hefny, A.M., Chua, H.C.
Published in Tunnelling and underground space technology (01.05.2006)

by Lei, W.D., Hefny, A.M., Yan, S., Teng, J.
Published in Computers and geotechnics (01.11.2007)

by Hussein, O.S., Hanafy Ahm, A.H., Ghalab, A.R., El-Hefny, A.M.
Published in American journal of plant physiology (15.02.2012)

by Zhao, J., Zhou, Y.X., Hefny, A.M., Cai, J.G., Chen, S.G., Li, H.B., Liu, J.F., Jain, M., Foo, S.T., Seah, C.C.
Published in Tunnelling and underground space technology (01.10.1999)

by F.F.B. Abu-Ellail1, A.B.A. El-Taib2and Y. A.M. Hefny3
Published in Electronic journal of plant breeding (28.09.2021)

by El Hefny Amer, Omnia, Mohamed Abouda, Hossam, El-Saka, Mervat, Al-Ghareeb, Mahmoud
Published in Tanta Medical Journal (01.04.2022)

by Selim H.A, El Hefny A.M
Year of Publication 1984

by Mohamed M.I, El Hefny A.M
Year of Publication 1979

by Helal H.A, El Khouly A.S, El Hefny A.M, Ali M.M
Published in Journal of Agricultural Sciences, Mansoura Univ (1988)

by El-Hefny, A.M. (King Abdul-Aziz Univ., Jedda (Saudi Arabia). Faculty of Metrology), Seyam, S.M
Published in Annals of Agricultural Science, Moshtohor (Egypt) (01.12.1992)

by El Hefny A.M, Mazeed M.M, Abd El Moneim A.E, Abuzaid M.I
Year of Publication 1980

by El Hefny A.M, Mostafa M.A, Abd El Salam A.L, El Nakeh A.A
Year of Publication 1979

by Abd El Salam A.L, Hefny A.M, Moustafa M.A, El Nakah A.A
Year of Publication 1979

by Helal, H.A, El Awady, S.M. (Azhar Univ., Cairo (Egypt). Faculty of Agriculture), El-Hefny, A.M, El-Adawy, A.M
Published in Azhar Journal of Agricultural Research (Egypt) (01.12.1989)