Mozumder, N. H. M. R., M. Akhtaruzzaman, M. A. Bakr, and F. Tuj Zohra. 2011. “Study on Isolation and Partial Purification of Lactase (Β-Galactosidase) Enzyme from Lactobacillus Bacteria Isolated from Yogurt”. Journal of Scientific Research 4 (1):239. https://doi.org/10.3329/jsr.v4i1.8478.