Purohit, Sudha G., Statistics Using R Sudha G. Pyrigut, Sharad D. Gore & Shailaja R. Deshmukh - 2nd ed. - New Delhi : Narosa Publishing House, c2008. - viii, p.; - Schaum's Outline Series . ISBN: 9788184874556 Dewey Class. No.: 519.2 / PUR/GOR/STA