Kuebler, Roy R., author
John Wiley & Sons, 1976
Buku Teks
Kuebler, Roy R., author
John Wiley & Sons, 1976
Buku Teks
Smith, Lee H.
Wadsworth, 1971
Buku Teks
Mosteller, Frederick, author
Addison Wesley Publ., 1983
Buku Teks
Erickson, Roy V., author
Allyn and Bacon, 1985
Buku Teks