by Mahmoud S.A.Z, Ishac Y.Z, Abdel Hafez A.M, Farag N.S, Fawzi F.G
Published in Research Bulletin (1981)

by Mahmoud, S.A.Z, Ishac, Y.Z, Salem, S.H, El-Fouly, M.Z
Published in Zentralblatt für Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Zweite, naturwissenschaftliche Abteilung. Mikrobiologie der Landwirtschaft, der Technologie und des Umweltschutzes (1980)

by Girgis M.G.Z, Ishac Y.Z, Diem H.G, Dommergues Y.R
Published in Acta oecologica (Montrouge) (1992)

by Ishac, Y.Z, Angle, J.S, El-Borollosy, M.E, El-Demerdash, M.E, Mostafa, M.I, Fares, C.N
Published in Biology and fertility of soils (1994)

by Abou-Seada, M.N.I, Ishac, Y.Z. (Ain-Shams Univ., Cairo (Egypt). Faculty of Agriculture), Abdalla, S.T, Ameer, A.A, El-Shaboury, H.M
Published in Annals of agricultural science (01.06.1996)

by Ishac Y.Z, Ramadan E.M
Year of Publication 1984

by Ishac, Y.Z, El-Borollosy, M.A, Refaat, A.A
Published in Soil biology and conservation of the biosphere / edited by J. Szegi (1984)

by Ishac Y.Z, Ajam K.A.A, Rizk S.G
Year of Publication 1979

by Ajam, K.A.A, Ishac, Y.Z, Rizk, S.G
Year of Publication 1979

by Ishac Y.Z, Ajam K.A.A, Rizk S.G
Year of Publication 1979

by Taha, S.M, Ishac, Y.Z, Helmy, S
Published in Journal of microbiology of the United Arab Republic (1970)

by Ishac, Y.Z, Mostafa, M.I. (Ain-Shams Univ., Cairo (Egypt). Faculty of Agriculture)
Published in Arab Universities Journal of Agricultural Sciences (Egypt) (01.04.1998)

by Ishac Y.Z, El Sawy M, Abd El Malek Y
Published in Annals of Agricultural Science, Ain Shams Univ., Cairo (1984)

by Soliman, S., Soils and Water Dept., Cairo (Egypt). Atomic Energy Authority, El-Gala, A.M., Ain Shams University, (Egypt). Faculty of Agriculture, Ishac, Y.Z., Ain Shams University, (Egypt). Faculty of Agriculture, El-Ghandour, I.A., Soils and Water Dept., Cairo (Egypt). Atomic Energy Authority
Year of Publication 2002

by Ramadan, E.M, Ishac, Y.Z, Selim, A.A, Amara, M.A.T
Published in Soil biology and conservation of the biosphere / edited by J. Szegi (1984)

by Zohdy, L.I, Ishac, Y.Z, Hazem, A, Abd el-Aziz, R.A
Published in Soil biology and conservation of the biosphere / edited by J. Szegi (1984)

by Zohdy, L.I, Ishac, Y.Z, Hazem, A, Abd el-Aziz, R.A
Published in Soil biology and conservation of the biosphere / edited by J. Szegi (1984)

by Ishac, Y.Z, Selim, A.A, Ramadan, E.M, Amara, M.A.T
Published in Soil biology and conservation of the biosphere / edited by J. Szegi (1984)

by Zohdy, L.I, Ishac, Y.Z, Hazem, A, Abd el-Aziz, R.A
Published in Egyptian journal of microbiology (1983)

by Zohdy, L.I, Ishac, Y.Z, Hazem, A, Abd el-Aziz, R.A
Published in Egyptian journal of microbiology (1983)