STEPHENS, M.S.; NJOKU, I.; ANDERO, K.E. Economic Effects of Covid-19 Outbreak on Airlines’ Performance in Nigeria. International Journal of Scientific Research in Computer Science and Engineering, [S. l.], v. 11, n. 5, p. 23–38, 2023. Disponível em: https://ijsrcse.isroset.org/index.php/j/article/view/546. Acesso em: 9 jul. 2025.