Rajendiran, R. , devi, S. , SureshKumar, B. , Priya, V. (2011). 'Screening of Process Variables for the Production of Extracellular Lipase from Palm Oil by Trichoderma Viride using Plackett-Burman Design'. World Academy of Science, Engineering and Technology, Open Science Index 51, International Journal of Agricultural and Biosystems Engineering, 5(3), 112 - 115.