H., W., T., J., W., R.(1984).Introductory statistics for business and economics / Thomas H. wonnacott, Ronald J. Wonnacott (Ed.ke-3, Cet.5).New York:John Wiley n Sons.
Gaya MLA
Wonnacott, Thomas, H.., Wonnacott, Ronald, J.."Introductory statistics for business and economics / Thomas H. wonnacott, Ronald J. Wonnacott".Ed.ke-3, Cet.5New York:John Wiley n Sons,1984.Textbook.