Rakshit, S., S. K. Bhattacharya, S. Mallik, P. S. Mondal, S. Acharya, S. De, and B. C. Nandy. “VACCINE DEVELOPMENT & MODERN APPROACHES FOR COVID 19”. Journal of Biomedical and Pharmaceutical Research, Vol. 10, no. 3, June 2021, doi:10.32553/jbpr.v10i3.867.