Kakwani, Nanak C. (March 1977). "Measurement of Tax Progressivity: An International Comparison". The Economic Journal. 87 (345): 71–80. doi:10.2307/2231833. JSTOR2231833.
Bracewell-Milnes, Barry (September 1979). "Measurement of Tax Progressivity: A Comment". The Economic Journal. 89 (355): 648–651. doi:10.2307/2231875. JSTOR2231875.
jstor.org
Kakwani, Nanak C. (March 1977). "Measurement of Tax Progressivity: An International Comparison". The Economic Journal. 87 (345): 71–80. doi:10.2307/2231833. JSTOR2231833.
Bracewell-Milnes, Barry (September 1979). "Measurement of Tax Progressivity: A Comment". The Economic Journal. 89 (355): 648–651. doi:10.2307/2231875. JSTOR2231875.