Pohuang, Tawatchai, Sarawut Tanasatian, and Jiroj Sasipreeyajan. “Efficacy of Different Vaccination Programs of Live 4/91 Strain Against Thai QX-Like Infectious Bronchitis Virus in Broiler Chickens”. The Thai Journal of Veterinary Medicine 46, no. 3 (October 26, 2016): 419–425. Accessed May 6, 2024. https://he01.tci-thaijo.org/index.php/tjvm/article/view/69529.