Prasad, B. H. “On the Stability of a Four Species Syn Eco-System With Commensal Prey-Predator Pair With Prey-Predator Pair of Hosts-III (2nd Level Prey-Predator Washed Out States)”. Journal of Experimental Sciences, vol. 3, no. 2, June 2012, https://updatepublishing.com/journal/index.php/jes/article/view/1918.