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Statistical methods in economics
Guthrie, Harold W., (1966)
Mathematics and statistics for economists
Tintner, Gerhard, (1970)
Statistical methods
Snedecor, George W., (1967)
Statistics in research : basic concepts and techniques for research workers
Ostle, Bernard, (1963)
Determining a cost‐effective customer service level
Jeffery, Mariah M., (2008)
Mathematical model of sectoring in 3D space
Paulo, Eugene P., (1999)