Leong, S. S., S. Leong, C. Pau, and G. A. C. Beattie. “In Vitro Bioassay of Purpureocillium Lilacinum and Bacillus Thuringiensis for Control of Meloidogyne Incognita on Black Pepper (Piper Nigrum L.) in Sarawak, Malaysia, Northern Borneo”. Journal of the Entomological Research Society, Vol. 23, no. 1, Mar. 2021, pp. 41-59, doi:10.51963/jers.v23i1.1960.