Tax revenues fall in OECD countries. Dec. 15, 2010. OECD (Organisation for Economic Co-operation and Development). At the end of the article are links to tables.
Tax revenue as an automatic fiscal stabiliser - a South African perspectiveเก็บถาวร 2009-03-27 ที่ เวย์แบ็กแมชชีน. September 2002. By A.S. Swanepoel (South African Reserve Bank), and Nicolaas J. Schoeman (Department of Economics, University of Pretoria). South African Journal of Economic and Management Sciences (SAJEMS). See table 2 on page 576. Total taxes of 26.4% of GDP in 2001. Research Repository of the University of Pretoria, South Africa: [1]เก็บถาวร 2009-05-27 ที่ เวย์แบ็กแมชชีน