Vargas SA de, Bonzanini OA, Vargas AJ de. Environmental economics in social and environmental projects: disclosure of investments by Petrobras company in the year 2012. REGET [Internet]. 2015 Aug. 23 [cited 2025 Jan. 30];19:27-38. Available from: https://periodicos.ufsm.br/reget/article/view/19183