KYEI-MENSAH, J. Purchasing Power Parity in Some African Countries Using a Nonlinear Panel Unit Root Test. Journal of Applied Business and Economics, [S. l.], v. 21, n. 7, 2019. DOI: 10.33423/jabe.v21i7.2549. Disponível em: https://mail.articlegateway.com/index.php/JABE/article/view/2549. Acesso em: 7 jul. 2024.