TUGUSHEV, M. S. Competence’s Theorem: Solving Problems of Water Utilities. International Journal of Energy Economics and Policy, [S. l.], v. 8, n. 5, p. 104–112, 2018. Disponível em: https://www.econjournals.com/index.php/ijeep/article/view/6760. Acesso em: 19 apr. 2024.