Al-Idreesi , S.R. et al. 2013. Efficacy of Eimeria tenella (Oocyst and Sporozoite) Proteins as a Vaccine in Broilers Against Coccidiosis. International Journal of Poultry Science. 12, 3 (Feb. 2013), 157–163. DOI:https://doi.org/10.3923/ijps.2013.157.163.