Rakshit, S. ., Bhattacharya, S. K. ., Mallik, S. ., Mondal, P. S. ., Acharya, S. ., De, S. . and Nandy, B. C. . (2021) “VACCINE DEVELOPMENT & MODERN APPROACHES FOR COVID 19”, Journal of Biomedical and Pharmaceutical Research, 10(3). doi: 10.32553/jbpr.v10i3.867.