1. The GST/HST: Creating an Integrated Sales Tax in a Federal Country;R Bird;After Twenty Years: The Future of the Goods and Services Tax,2013
2. Sub-national revenues: realities and prospects, Fiscal policy training program, Andrew Young School of policy studies;Subnational Taxation in Large Emerging Countries: BRIC Plus One, Institute for Municipal Finance and Governance,1999
3. Assignment of Responsibilities and Fiscal Federalism;B --Dafflon;Politorbis,2003
4. VAT in a federal structure: the feasibility of implementation of a single, broad-based VAT in Brazil within the parameters of the EU VAT model;B Dahlby;UNESCO,2001