Jeyarani, S., N. Sathiah, and P. Karuppuchamy. 2012. “<I>In vivo</I> Enhancement of Nucleopolyhedrovirus Infection in <I>Helicoverpa armigera</I> (Hübner) by the Granulovirus of <I>Spodoptera litura</I> Fabricius”. Journal of Biological Control 26 (3):234–239. https://doi.org/10.18311/jbc/2012/3494.