Breakpoint Unit Root Tests on Select Macroeconomic Variables in Nigeria. Global Journal of Science Frontier Research, [S. l.], v. 21, n. F2, p. 61–65, 2021. Disponível em: https://www.journalofscience.org/index.php/GJSFR/article/view/2929. Acesso em: 14 aug. 2026.