VÁSQUEZ TRUJILLO, M. C. Optimal tax rate: Laffer curve Guatemala. Revista Académica CUNZAC, [S. l.], v. 6, n. 1, p. 23–30, 2023. DOI: 10.46780/cunzac.v6i1.90. Disponível em: https://revistacunzac.com/index.php/revista/article/view/90. Acesso em: 3 jul. 2024.