V. Shakeela and S. S. Hussaini, “Influence of Soil Type on Infectivity and Persistence of Indigenous Isolates of Entomopathogenic Nematodes, Heterorhabditis Indica Poinar et Al. (nematoda: Heterorhabditidae) and Steinernema Carpocapsae Weiser (nematoda: Steinernematidae)”, JBC, vol. 23, no. 1, pp. 63–72, Apr. 2009.