DAILY, D. R. . The Role of the Gas Marketer. Distributed Generation & Alternative Energy Journal, [S. l.], v. 13, n. 2, p. 6–9, 1998. DOI: 10.13052/dgaej2156-3306.1321. Disponível em: https://journals.riverpublishers.com/index.php/DGAEJ/article/view/14773. Acesso em: 3 jun. 2026.