N. Chauynarong, P. Iji, S. Isariyodom, and L. Mikkelsen, “The Influence of an Exogenous Microbial Enzyme Supplement on Feed Consumption, Body Growth and Follicular Development of Pre-Lay Pullets on Maize-Soy Diets ”, Int. J. Poult. Sci., vol. 7, no. 3, pp. 257–262, Feb. 2008, doi: 10.3923/ijps.2008.257.262.