Ismail, Mohd Iswadi. 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):93-102. https://doi.org/10.47253/jtrss.v9i2.781.