Hyland, Bruce, author
Gramedia Pustka Utama, 1996
Buku Teks
Harvard Business School Press, 2004
Buku Teks
Andreas A. Danandjaja, author
Institut Pendidikan dan Pembinaan Manajemen (IPPM), 1986
Buku Teks
Moonman, Eric, author
Pan Books, 1971
Buku Teks
Davidson, Jeffrey P., author
Arcan, 1989
Buku Teks