[pt] Curso De Direito Tributário Completo - 6ª Edição Livraria do Advogado Editora
[en] Fight the Power! New Internationalist
[en] Prosperity without Greed Campus Verlag
[en] [Gutenberg 63441] • History of Taxation in Rhode Island to the Year 1790 Palala Press
[en] "Trickle Down Theory" and "Tax Cuts for the Rich" Hoover Institution Press
[fr] [Gutenberg 19984] • Du service des postes et de la taxation des lettres au moyen d'un timbre Hachette Livre Bnf
[en] [Gutenberg 53189] • The History of Parliamentary Taxation in England Scholar's Choice
[en] Organic Wealth · Create Your Own Slice of Pie Liberty Word Publishing
[en] Your Money · The Missing Manual O'Reilly Media
[en] [The Shamwell Tales 03] • Out! Samhain Publishing
[en] Freedom Ain't Free Jay Mcfarland