Johnson, Robert
Elementary statistics
PWS-Kent, 1984
 Buku Teks SO
Erricker, B.C.
Elementary statistics
Hodder and Stoughton, 1981
 Buku Teks SO
Freund, John E.
Modern elementary statistics
Prentice-Hall, 1980
 Buku Teks
Bowley, Arthur
An elementary manusal of statistics
Macdonald and Evans, 1951
 Buku Teks
Freund, John E.
Modern elementary statistics
Pearson Prentice Hall, 2007
 Buku Teks SO