1. Adepoju OO. Impacts of Covid 19 on shipping (eds) Fundamentals of Maritime Transport Operations and Practice published by Great Polaris Print Lagos; 2022.
2. Lu Z, Zhu L, Li Z, Liang X, Zhang Y. The Effects of Passenger Risk Perception During the COVID-19 Pandemic on Airline Industry: Evidence From the United States Stock Market. Front Psychol. 2022 Jan 4;12:795940. doi: 10.3389/fpsyg.2021.795940
3. Centers for Disease Control and Prevention. (2020). COVID–19 Spreads, Ctr. for Disease Control. Available at: https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-sick/how-covid-spreads.html
4. International Air Transport Association (IATA). Air Passenger Market Analysis; May 2020. Available at: https://www.iata.org/en/iata-repository/publications/economic-reports/air-passenger-monthly-analysis—may-2020/
5. Shepardson D, Johnson EM. U.S. lawmakers consider aid for aerospace workers in COVID–19 bill. Reuters; Dec. 18, 2020.