FILIPOVA, Milena; TANCHEV, D. Stoyan. TAX BUOYANCY AND TAX ELASTICITY OF THE PROPORTIONAL INCOME TAX IN BULGARIA. Revista Inclusiones, [S. l.], p. 593–610, 2021. Disponível em: https://revistainclusiones.org/index.php/inclu/article/view/2473. Acesso em: 23 ene. 2026.