SINGH, D., SWARNKAR, C. P., KHAN, F. A., BHAGWAN, P. S. K., & DUBEY, S. C. (2011). In vitro ovicidal and larvicidal activity of Andrographis paniculata (Kalmegh) leaves on Haemonchus contortus. The Indian Journal of Animal Sciences, 81(2). https://epubs.icar.org.in/index.php/IJAnS/article/view/4025