Ertürk , Egemen. “A Preliminary Study on Challenges Faced by Ship Management Companies During the COVID-19 Pandemic”. Scientific Journal of Gdynia Maritime University, no. 122 (June 30, 2022): 22–31. Accessed November 21, 2024. https://sjgmu.umg.edu.pl/index.php/sjgmu/article/view/291.