Md. Harun-ur -Rashid, et al. “Probiotic Characteristics of Lactic Acid Bacteria Isolated from Traditional Fermented Milk ‘Dahi’ In Bangladesh”. Pakistan Journal of Nutrition, vol. 6, no. 6, Oct. 2007, pp. 647–652, https://doi.org/10.3923/pjn.2007.647.652.