S. E. Soliman, P. Reddy, A. M. Sobeih, H. Busby, and E. S. Rowe, “Epidemiological Surveillance on Environmental Contaminants in Poultry Farms”, Int. J. Poult. Sci., vol. 8, no. 2, pp. 151–155, Jan. 2009, doi: 10.3923/ijps.2009.151.155.