Taxation and Transportation: Granger Causality Approach in Nigeria. Studia Universitatis Vasile Goldiș Arad, Seria Științe Economice, [S. l.], v. 31, n. 3, p. 1–20, 2021. Disponível em: https://publicatii.uvvg.ro/index.php/studiaeconomia/article/view/681. Acesso em: 15 apr. 2026.