Singh, K. I., C. H. Singh, M. P. Singh, and M. K. Gupta. 2009. “Predation Efficiency of Five Coccinellid Beetles on <I>Aphis craccivora</I> Koch Infesting Cowpea”. Journal of Biological Control 23 (1):49-52. https://doi.org/10.18311/jbc/2009/3615.