Al-Kassi, Galib A.M., and Noor M. Witwit. “A Comparative Study on Diet Supplementation With a Mixture of Herbal Plants and Dandelion As a Source of Prebiotics on the Performance of Broilers”. Pakistan Journal of Nutrition, vol. 9, no. 1, Dec. 2009, pp. 67-71, https://doi.org/10.3923/pjn.2010.67.71.