Aengwanich , W. and Boonsorn, T. (2017) “Effect of Tannic Acid Extracted from Cassava (Manihot esculenta Crantz) Leaves on Productive Performance, Intestinal Microorganisms and Villi Morphometry in Broilers: A Preliminary Study”, International Journal of Poultry Science, 16(2), pp. 50–55. doi:10.3923/ijps.2017.50.55.