Freund, John E.
Modern elementary statistics
Pearson Education, 2007
Multimedia
Freund, John E.
Modern elementary statistics
Prentice-Hall, 1980
Buku Teks
Freund, John E.
Modern elementary statistics
Prentice-Hall, 1984
Buku Teks SO
Bowley, Arthur
Elementary of statistics
Staples Press, 1948
Buku Teks SO
Johnson, Robert
Elementary statistics
PWS-Kent, 1984
Buku Teks SO