KARIYAWASAM, H. N. Cost Economies for an Airline: An Analysis of Airlines’ Operating Costs. International Journal of Management Excellence (ISSN: 2292-1648), [S. l.], v. 12, n. 3, p. 1856–1859, 2019. DOI: 10.17722/ijme.v12i3.1082. Disponível em: https://techmindresearch.org/index.php/ijme/article/view/1082. Acesso em: 13 oct. 2025.