by Atta, S.Kh, Mohammed, S.A., Van Cleemput, O., Zayed, A.
Published in Soil technology (01.12.1996)

by Atta, S.Kh, Mohammed, S.A., Van Cleemput, O., Zayed, A.
Published in Soil technology (1996)

by Atta, S.Kh, Ragab, M, Zayed, A.M
Published in Les Arbres fixateurs d'azote ; L'Amelioration biologique de la fertilite du sol : actes des seminaires, 17-25 mars [1986], Dakar, Senegal / [organ par le Cent de recherche pour le dev int [et] la Fond int pour la science] (1987)

by Koriesh, E.M. (Suez Canal Univ., Ismaileyah (Egypt). Faculty of Agriculture), Atta, S.Kh
Published in Annals of Agricultural Science, Moshtohor (Egypt) (1986)

by Koriesh, E.M. (Suez Canal Univ., Ismaileyah (Egypt). Faculty of Agriculture), Helmy, M.A, Atta, S.Kh
Published in Annals of Agricultural Science, Moshtohor (Egypt) (1985)

by El-Khoreiby, A.M.K. (Suez Canal Univ., Ismaileyah (Egypt). Faculty of Agriculture), Atta, S.Kh
Published in Zagazig Journal of Agricultural Research (Egypt) (01.12.1984)