Saki, A., R. Harcini, E. Rahmatnejad, and J. Salary. “Herbal Additives and Organic Acids As Antibiotic Alternatives in Broiler Chickens Diet for Organic Production”. African Journal of Biotechnology, vol. 11, no. 8, Feb. 2014, pp. 2139-45, doi:10.5897/ajb11.797.