SINGH, R. Ecological Marketing: An Obligation or Responsibility. International Journal of Contemporary Research and Review, [S. l.], v. 8, n. 07, 2017. DOI: 10.15520/ijcrr/2017/8/07/272. Disponível em: http://ijcrr.info/index.php/ijcrr/article/view/272. Acesso em: 3 may. 2024.