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Basic statistical methods
Downie, N. M., (1965)
Statistics for economics and business
Paden, Donald W., (1956)
Statistics: An introduction to quantitative economic research
Suits, Daniel Burbidge, (1963)
Descriptive and sampling statistics
Peatman, John Gray, (1947)
In the Minds of men : the study of human behavior and social tensions in India
Murphy, Gardner, (1955)