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Statistics for economics and business
Paden, Donald W., (1956)
Basic statistical methods
Downie, N. M., (1965)
Probability, distributions and statistics
Zehna, Peter W., (1970)
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)