ALFREIJAT, Saleh. Estimating the optimal size of the tax burden in Jordan using the Laffer curve During the period (2020-1980). Al-Balqa Journal for Research and Studies, [S. l.], v. 24, n. 2, p. 126–139, 2021. DOI: 10.35875/1105-024-002-009. Disponível em: https://ajrs.ammanu.edu.jo/ojs/index.php/albalqajournal/article/view/128.. Acesso em: 10 oct. 2026.