ERTUGRUL, M. E.; TANRISEVEN, K. Analysis of Income Convergence in G-20 Countries with Structural Break Unit Root Test. International Journal of Economics and Financial Issues, [S. l.], v. 8, n. 2, p. 344–349, 2018. Disponível em: https://www.econjournals.com/index.php/ijefi/article/view/6453. Acesso em: 24 apr. 2024.