The use of socio-economic indicators in development planning
Unesco Press, 1979
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Sullivan, John L. (John Lawrence), 1945-
Multiple indicators : an introduction
Sage, 1979
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Stutely, Richard
Guide to economic indicators/ Richard Stutely
Century Business, 1992
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Rummel, J. Francis
An Introduction to research procedures in education / J. Francis Rummel
Harper & Row, 1964
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Perthel, Dirk
Laws of development indicators of development and their effects on economic growth
Amsterdam University, 1981
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