Krithiga, K. (2019) “Concurrent Infection of Infectious Bronchitis (IB) and Sub-Clinical Infectious Bursal Disease (IBD) in an Organised Poultry Farm”, International Journal of Livestock Research. India, 9(7), pp. 261–266. Available at: http://ijlr.org/ojs_journal/index.php/ijlr/article/view/1209 (Accessed: 6 July 2026).