MACIEL, Harine Matos; KHAN, Ahmad Saeed. The Eco-efficiency Index at the international level:: a comparative analysis of the performance of 51 countries between 1991 and 2012. Sustainability in Debate, [S. l.], v. 8, n. 1, p. 125–140, 2017. DOI: 10.18472/SustDeb.v8n1.2017.21089. Disponível em: https://periodicos.unb.br/index.php/sust/article/view/16463. Acesso em: 21 jun. 2024.