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Theoretical statistics
Cox, David R., (1974)
Basic statistics for business and economics
Hoel, Paul Gerhard, (1971)
Comparative statistical inference
Barnett, Vic, (1973)
Statistics for economists
Allen, Roy G. D., (1956)
Mathematical economics
Allen, Roy G. D., (1957)
Mathematical analysis for economists
Allen, Roy G. D., (1938)