Hiam, Alexander
Elex Media Komputindo, 1994
Buku Teks
Giannini, Gaetan T.
Prentice-Hall, 2010
Buku Teks
Allard, Patsy Bailey
AMA Membership Publications Division, American Management Associations, 1983
Buku Referensi
Meister, Sandra
[Springer Gabler, Springer Gabler], 2012
eBooks
Taufik
Gramedia Pustaka Utama, 2012
Buku Teks