Schonberger, Richard John, author
Business Publications, 1985
Buku Teks
Schonberger, Richard John, author
Irwin/McGraw-Hill, 1997
Buku Teks
Schonberger, Richard John, author
N.Y. The Free Press, 1986
Buku Teks
Dilworth, James B., 1939-
McGraw-Hill, 1992
Buku Teks
Dilworth, James B., 1939-, author
McGraw-Hill, 1996
Buku Teks