FACIN, D.; FREITAS, E. C. de. Sustainability as a trademark: an analysis of discursive formulas in advertising. Letrônica, [S. l.], v. 5, n. 2, p. 151–170, 2012. Disponível em: https://revistaseletronicas.pucrs.br/index.php/letronica/article/view/10703. Acesso em: 3 jun. 2024.