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Metered and Unmetered Billing: How Asymmetric are the Phcn Bills?. Journal of Social Economics Research, [S. l.], v. 1, n. 5, p. 97–107, 2014. Disponível em: https://archive.conscientiabeam.com/index.php/35/article/view/1298. Acesso em: 1 aug. 2026.