Waldroup, P.W., C.A. Fritts, and Fenglan Yan. 2002. “Utilization of Bio-Mos® Mannan Oligosaccharide and Bioplex&Reg; Copper in Broiler Diets”. International Journal of Poultry Science 2 (1): 44–52. https://doi.org/10.3923/ijps.2003.44.52.