Khalifeh, Mohammad S., and Ehab A. Abu-Basha. “Boosting Newcastle Disease Vaccination Efficacy under Field Conditions by Aromatic Plant Essential Oil Extracts”. Veterinary Science Development 4, no. 2 (September 4, 2014). Accessed November 22, 2024. https://www.pagepress.org/journals/vsd/article/view/5546.