S. Purnima, M. S. Jeyalakshmi, J. Saranya Devi, J. M. Sonu, M. Subha, and A. Thamizhselvi, “Novel Method of Design of E-Vaccination based Integrated System for Covid 19”, Int. J. Mod. Comput. Inf. Commun. Technol., vol. 5, no. 1, pp. 11–15, May 2022, doi: 10.65000/m501dr04.