Ashwin Butle, and M. B. Patil. “Purification and Characterization of β-Galactosidase from Leaves of Zizyphus Oenoplia”. World Journal of Pharmaceutical Sciences, vol. 3, no. 7, July 2015, pp. 1450-5, https://wjpsonline.com/index.php/wjps/article/view/purification-beta-galactosidase-leaves-zizyphus-oenoplia.