Shweta Kumari and  Parmjit S. Panesar and  Manab B. Bera,  Statistical Modeling for Permeabilization of a Novel Yeast Isolate for β-Galactosidase Activity Using Organic Solvents.   journal   = {International Journal of Agricultural and Biosystems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2014, vol. 90(6). 567 - 572
    [viewed 26 May 2020]. Available from: https://publications.waset.org/pdf/9998372.