Ismail, M.I. 2021. Coronaviruses of the veterinary and socio-economic importance: Classification, pathogenicity, transmission, and evolution of the coronaviruses. Journal of Tropical Resources and Sustainable Science (JTRSS) . 9, 2 (Dec. 2021), 93–102. DOI:https://doi.org/10.47253/jtrss.v9i2.781.