E. Oviedo-Rondon, S. Clemente-Hernandez, F. Salvador, P. Williams, and R. Losa, “Essential Oils on Mixed Coccidia Vaccination and Infection in Broilers”, Int. J. Poult. Sci., vol. 5, no. 8, pp. 723–730, Jul. 2006, doi: 10.3923/ijps.2006.723.730.