EKMEKCI, Ismail. Comparative Economic Analysis of Aircraft Maintenance Expenses and Operational Revenue: A Present Value Approach for Fleet Profitability. International Journal of Transportation Research and Technology , [S. l.], v. 3, n. 1, 2026. Disponível em: https://submission-system.transporttech.org/index.php/jt/article/view/36.. Acesso em: 25 jun. 2026.