Singh, S.P., G. Sandani, J.K. Dubey, A. Kumar Udai Kumar, and M.K. Singh. 2010. “Influence of Some Nitrogenous Compounds on Microbial Production of Lactic Acid by Lactobacillous delbrueckii&Dagger”;. Asian Journal of Chemistry 8 (4):595-98. https://asianpubs.org/index.php/ajchem/article/view/24156.