R. M. Al ? Arosi, W. Tawakkol, M. H. R. Kotb, and M. K. Refai,  " Isoaltion and identification of  of  Cryptococcus neoformans from milk and pigeon dropping, with special emphasis on the the effect of oil on the growth and capsular size. Egypt. J. ",  Egypt. J. Biomed. Sci. , vol. 16, , pp. 340-353., 2004.