Schonberger, Richard John
The Free Press , 1982
Buku Teks
Schonberger, Richard John
Prenhallindo , 1997
Buku Teks
Hull, John F.
Gower Press, 1973
Buku Teks
Schonberger, Richard John
Business Publications, 1985
Buku Teks
Schonberger, Richard John
Business Publications , 1981
Buku Teks