Karukarach, T. et al. 2016. Comparative Effects of Blended Herbal Extracts and Mixed Prebiotics on Growth Performance, Carcass Yields and Intestinal Morphology of Broiler Chickens. International Journal of Poultry Science. 15, 7 (Jun. 2016), 264–270. DOI:https://doi.org/10.3923/ijps.2016.264.270.