WALSH, R. J. A Comparison Of The Effectiveness Of Tax Laws Between Countries For Firms Engaging In Research And Development. International Business & Economics Research Journal (IBER), [S. l.], v. 4, n. 8, 2005. DOI: 10.19030/iber.v4i8.3609. Disponível em: https://clutejournals.com/index.php/IBER/article/view/3609. Acesso em: 17 jul. 2024.