Farahat, A. A., and A. A. Osman,
"Response of the reniform nematode, Rotylenchulus reniformis infected tomato to some growth regulators applied as foliage spray",
Annals of AgricSc., Moshtohor, vol. 26, issue 2, pp. 1341-1351, 1989.
Abd El-Rahman, M. S., M. M. Fahmy, K. Ashmawy, M. M. El-Nimr, and M. M. El-Bahi,
"A review on the work done for the preparation of a vaccine against Theileria annulata Egyptian strain.",
J. Egypt. Vet. Med. Ass., vol. 49 , issue 1&2, pp. 529-540., 1989.
Khalifa A, F. R., S. Nasser, G. O, and M. Gadallah,
"The role of vitamin A intervention in controlling infantile diarrhea",
Egyptian Journal of Paediatrics, vol. 6, issue 3/4, pp. 401-413, 1989.
F., E. L. - S. S., S. A. Shehata, and.A. E. A. EL-Hassan,
"Seed production of onion ( Allium cepa,L) by application of some growth regulators and zink.",
Bull. Fac. Of Agric., Univ. of Cairo,, vol. 3, pp. 595-604, 1989.
Fahmy, M. M., H. Gohar, S. A. Ahmed, and M. M. El-Bahi,
"Short communication: Hydatid cyst in the inguinal region of sheep and goat in Egypt. ",
Alex. J. Vet. Sci., vol. 5, issue 1, pp. 463-467, 1989.
Refai, M., Karim, I., El-Seedy, F., W. Awad, and H.: Hamman,
"The specificity and sensitivity of enzyme-linked immunosorbent assay and indirect antibody test in tuberculin positive bovine. ",
J. Egypt. Vet. Med. Ass. , vol. 49, , pp. 203-210 , 1989.
Badr, R. I., M. F. Hassan, J. Bernussou, and A. Y. Bilal,
"Stability and performance robustness for multivariable linear systems ",
Automatica(Journal of IFAC), vol. 25, issue 6, pp. 935-942, 1989.
A.M.Kheir, A. A. Farahat, and S. K. Abadir,
"Studies on the CCN , Heterodera zeae in Egypt : II- Morphometric comparisons of four populations of the corn cyst nematode",
Bull. Zool. Soc., Egyp,, vol. 38, issue 1, pp. 35-40, 1989.
Farahat, A. A., S. K. Abadir, and A.M.Kheir,
"Studies on the CCN , Heterodera zeae in Egypt : III- Post infection developmebt of four populations of the corn cyst nematode.",
Bull. Fac. of Agric., Cairo Univ. , vol. 39, issue 1, pp. 373=379, 1989.
A.M.Kheir, A. A. Farahat, and S. K. Abadir,
"Studies on the CCN , Heterodera zeae in Egypt : IV- Variations in development and reproduction of four different populations on some corn cultivars.",
Bull. Fac. Of Agric., Cairo Univ. , vol. 39, issue 1, pp. 381-388, 1989.
A.M.Kheir, A. A. Farahat, and undefined,
"Studies on the CCN , Heterodera zeae in Egypt: I- Descritive comparisons of four populations of the corn cyst nematode. ",
Bull. Zool. Soc., , vol. 38, issue 1, pp. 25-34, 1989.
Hammam, H., Refai, M., W. Bisping, and G.: Kirpal,
"Studies on the effieciency of absorbed bovine PPD in tuberculin and serological tests.",
J. Vet. Med. B. , vol. 36, , pp. 175-179 , 1989.
Kheir, N. F., S. M. Salem, A. H. Hanafy Ahmed, and O. M. A. El-Shihy,
"Studies on the resistance of Vicia faba varieties to Orobanche crenata Forsk.",
Bull. Fac. Of Agric., Univ. of Cairo, vol. 40, issue 1, pp. 197-212, 1989.