Fox, John (2005). "The R Commander: A Basic-Statistics Graphical User Interface to R". Journal of Statistical Software. 14 (9). doi:10.18637/jss.v014.i09. https://doi.org/10.18637%2Fjss.v014.i09
Muenchen, Robert A. (2011). R for SAS and SPSS Users. New York: Springer. pp. 46–48. ISBN 978-1-4614-0685-3. 978-1-4614-0685-3
Discovering Statistics With R. http://www.uk.sagepub.com/books/Book236067
Biostatistics with R https://dx.doi.org/10.1007/978-1-4614-1302-8