SPULBAR, C.; EHSANIFAR, M.; BIRAU, R.; BABAIE, A.; DOAGĂ, D. I. Advanced empirical research based on structural equation modeling (SEM) regarding the impact of tax revenue on GDP dynamics at EU-28 level. Scientific Annals of Economics and Business, Iasi, Romania, v. 68, n. 3, p. 285–307, 2021. DOI: 10.47743/saeb-2021-0017. Disponível em: http://saeb.feaa.uaic.ro/index.php/saeb/article/view/1218. Acesso em: 27 nov. 2021.