A. THANGAVELU, G. D. RAJ, K. NACHIMUTHU, N. DURAIRAJAN, and A. VENUGOPALAN, “Characterization of field isolates of Newcastle disease virus”, Indian J of Anim Sci, vol. 65, no. 4, Jul. 2013, Accessed: Oct. 24, 2025. [Online]. Available: https://epubs.icar.org.in/index.php/IJAnS/article/view/31665