Schonberger, Richard John, author
Chicago Irwin 1997,
Buku Teks
Schonberger, Richard John, author
Business Publications, 1985
Buku Teks
Schonberger, Richard John, author
Irwin/McGraw-Hill, 1997
Buku Teks
Schonberger, Richard John, author
Business Publications , 1981
Buku Teks
Schonberger, Richard John, author
N.Y. The Free Press, 1986
Buku Teks