Thompson, Daniel, and Subarmaniam Kannan. “The Impact of the Covid-19 Pandemic on Air Traffic in the Asian Region: How the Aviation Industry Adapted Throughout the Pandemic ”. International Journal of Membrane Science and Technology 10, no. 2 (September 5, 2023): 1545-1562. Accessed July 22, 2024. https://cosmosscholars.com/phms/index.php/ijmst/article/view/1823.