Shikha Singh, and Vivek Kumar. “Modelling and Analysis of the Role of Vaccination and Isolation on the Spread of Infectious Diseases”. Journal of International Academy of Physical Sciences 17, no. 4 (December 15, 2013): 355–367. Accessed May 12, 2024. https://www.iaps.org.in/journal/index.php/journaliaps/article/view/538.