Dr. Monika Dasharathgorkhe, Dr. Minirani S., Dr. A. Krishnaraju, Devendra Singh, Rahul Kar, Dr. Makarand Upadhyaya, A. Pandi, S. Balamuralitharan 2021. Some Applications of Closed Setsin Second Wave Covid-19 Infections Parameters. Annals of the Romanian Society for Cell Biology. 25, 6 (May 2021), 4353 –.