22. The art of R programming: a tour of statistical software design Matloff, Norman S. San Francisco : No Starch Press, c2011. GED217
23. Data Manipulation With R Spector, Phil. New York : Springer Science+Business Media, c2008. GED217
24. Mathematical statistics and data analysis Rice, John A., 1944- Belmont, CA : Thomson/Brooks/Cole, c2007. GED217
26. Statistics as principled argument Abelson, Robert P. Hillsdale, N.J. : L. Erlbaum Associates, c1995. CP516
