Tabatabaei, D., and A. A. Sepahy. “Comparative Evaluation of Hyaluronic Acid Production by Streptococcus Thermophilus Isolated from Yoghurt”. Journal of Research in Biology, Vol. 7, no. 6, Sept. 2017, pp. 2342-54, https://ojs.jresearchbiology.com/index.php/jrb/article/view/453.