Thill, John V.
Excellence in Business Communication / John V. Thill, Courtland L. Bovee
McGraw-Hill, 1993
Buku Teks
Shubin, John A.
Business management
Barnes & Noble, 1975
Buku Teks
Gupita, Rajat, foreword
Managerial excellence : McKinsey award winners from the Harvard business review, 1980-1994
Harvard Business School, 1996
Buku Referensi
Thill, John V.
Excellence in business communication/ John V. Thill, Courtland L. Bovee
McGraw-Hill, 1991
Buku Teks
Walthall, Wylie A.
Getting into business an introduction to business
Harper and Row, 1987
Buku Teks