Youssef, S. A., Refai, M., Youssef, S. A., Taha, M., Hassan, M. Awad, and T. Safwat,
": Incidence of yeasts in the sputum of patients with bronchopulmonary diseases in Egypt. ",
Egypt. J. Chest Dis.&Tub. , vol. 23, , pp. 27-32 , 1980.
Youssef, A. M., A. M. Aboul-Enein, O. S.A, and F. M. Hewedi,
"Chemical analysis of Egyptian onion and garlic",
Pev. Bull. Fac. Agric. Ain Shams Univ., vol. 1968, issue March, pp. 1-7, 1980.
Youssef, A. M., A. M. Aboul-Enein, O. S.A., and F. M. Hewedi,
"Chemical analysis of Egyptian onion and garlic. ",
Pev. Bull. Fac. Agric. Ain Shams Univ.,, vol. 1968, issue March, pp. 1, 1980.
El-Fishawy, A. M., G. H. Mahran, A. M.S, and E. - H. G.A,
"Chromatographic Study of the alkaloidal content of the different organs and Quantitation of morphine at the different Stages of Papaver somniferum L.",
Bull. Fac pharm. Cairo Univ., vol. XIX (1),, pp. 169, 1980.
Deeb, E. S., E. R. Ridi, and N. Badir,
"Effect of seasonal and temperature changes on humoral response of Eumeces schneideri (Reptilia, Sauria, Scincidae)",
Developmental and Comparative Immunology, vol. 4, pp. 753-758 , 1980.