Sasipreeyajan, J., Pohuang, T., & Sirikobkul, N. (2013). Efficacy of Different Vaccination Programs against Thai QX-like Infectious Bronchitis Virus. The Thai Journal of Veterinary Medicine, 42(1), 73–79. Retrieved from https://he01.tci-thaijo.org/index.php/tjvm/article/view/9859