SHAFIE, F. A. Barcelona towards Sustainability. Asian Journal of Environment-Behaviour Studies, [S. l.], v. 3, n. 10, p. 21-27, 2018. DOI: 10.21834/aje-bs.v3i10.309. Disponível em: https://aje-bs.e-iph.co.uk/index.php/ajE-Bs/article/view/309. Acesso em: 28 jan. 2022.