Freund, John E.
Modern elementary statistics
Prentice-Hall, 1980
Buku Teks
Freund, John E.
Modern elementary statistics
Prentice-Hall, 1984
Buku Teks
Bowley, Arthur
Elementary of statistics
Staples Press, 1948
Buku Teks
Johnson, Robert
Elementary statistics
PWS-Kent, 1984
Buku Teks
Bowley, Arthur
An elementary manusal of statistics
Macdonald and Evans, 1951
Buku Teks