G. D. RAJ, T. T. VELU, K. NACHIMUTHU, and A. T. VENUGOPALAN, “Passive haemagglutination test in the diagnosis of infectious bursal disease”, Indian J of Anim Sci, vol. 65, no. 2, Jul. 2013, Accessed: Oct. 24, 2025. [Online]. Available: https://epubs.icar.org.in/index.php/IJAnS/article/view/31571