Rajkumar Sharma. 2020. “Analytical Study Of Prevention From Transmission Of Covid-19 Pandemic And Its Affect On Worldwide Population”. Vidhyayana - An International Multidisciplinary Peer-Reviewed E-Journal - ISSN 2454-8596 5 (5). http://j.vidhyayanaejournal.org/index.php/journal/article/view/1264.