Testing the Environmental Kuznets Curve Hypothesis Test: A Case Study of BRICS Countries. Efficient: Indonesian Journal of Development Economics, [S. l.], v. 8, n. 1, p. 122–132, 2025. DOI: 10.15294/v6bnvg39. Disponível em: https://journal.unnes.ac.id/journals/efficient/article/view/4616. Acesso em: 5 dec. 2025.