“Challenges and Opportunities Created in Business Due to Pandemic Coronavirus and Strategic & Tactics to Manage Critical Conditions” (2022) International Journal of Engineering Research and Advanced Technology (ijerat) (E-ISSN 2454-6135) DOI: 10.31695/IJERAT, 8(6), pp. 1–9. doi:10.31695/IJERAT.2022.8.6.1.