Sarachai, Chatchai, Niwat Chansiripornchai, and Jiroj Sasipreeyajan. “Efficacy of Infectious Bursal Disease Vaccine in Broiler Chickens Receiving Different Vaccination Programs”. The Thai Journal of Veterinary Medicine 40, no. 1 (October 10, 2013): 9–14. accessed April 6, 2025. https://he01.tci-thaijo.org/index.php/tjvm/article/view/12322.