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Guide to associations, agricultural control boards, co-operatives and employee, employer organisations in the RSA, 1985
Wyk, Helgard de Jager van; Dawson, N.; Els, J. - 1986
Persistent link: https://www.econbiz.de/10000705874
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Motor vehicle statistics as indicators of regional economic growth and welfare
Wyk, Helgard de Jager van - 1988
Persistent link: https://www.econbiz.de/10000835579
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Personal income of the RSATBVC countries by population group and magisterial district
Wyk, Helgard de Jager van - 1989
Persistent link: https://www.econbiz.de/10000836744
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The economic importance and growth of selected districts in the Republic of South Africa, 1980
Wyk, Helgard de Jager van - 1982
Persistent link: https://www.econbiz.de/10000842613
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Personal income of the RSA and national states by population group and magisterial district, 1960 to 1980
Nel, Petrus Abel; Wyk, Helgard de Jager van - 1984
Persistent link: https://www.econbiz.de/10000685039
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Geographical distribution of the taxable income, assessments and taxes of whites, coloureds and Asians, 1970 - 1982
Wyk, Helgard de Jager van - 1985
Persistent link: https://www.econbiz.de/10000705876
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The economic importance and growth of selected districts in the RSA and TBVC countries, 1985
Wyk, Helgard de Jager van - 1984
Persistent link: https://www.econbiz.de/10000705879
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Personal disposable income in South Africa by population group, income group and district
Wyk, Helgard de Jager van - 2000
Persistent link: https://www.econbiz.de/10001595017
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National personal income of South Africa by income and population group, 1960 - 2005
Wyk, Helgard de Jager van - 2002
Persistent link: https://www.econbiz.de/10002046113
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South Africa's nine provinces : a socio-economic profile, 1995
Ligthelm, Andreas Adriaan; Martins, Johannes Hercules; … - 1995
Persistent link: https://www.econbiz.de/10000938766