edited by Willie Henderson, Tony Dudley-Evans and Roger Backhouse
Routledge, 1993
Buku Teks SO
Bingham, Robert C.
McGraw-Hill, 1987
Buku Teks SO
Bingham, Robert C.
McGraw-Hill, 1975
Buku Teks SO
Stengel, Donald N.
Business Expert, 2011
Buku Teks SO
Bingham, Robert C.
McGraw-Hill Book Company, 1972
Buku Teks SO