SKOWRON, Stanisław; SZYMONIUK, Barbara. Marketing and Sustainable Development. Problemy Ekorozwoju, [S. l.], v. 9, n. 2, p. 39–46, 2014. Disponível em: https://ph.pollub.pl/index.php/preko/article/view/4872. Acesso em: 11 apr. 2025.