APPIAH, M. K.; POSSUMAH, B. T.; AHMAT, N.; SANUSI, N. A. Policy Environment and Small and Medium Enterprises Investment in the Ghanaian Oil and Gas Industry. International Journal of Energy Economics and Policy, [S. l.], v. 8, n. 4, p. 244–253, 2018. Disponível em: https://econjournals.com/index.php/ijeep/article/view/6598. Acesso em: 2 may. 2024.