Ellis, Carol W., author
[American Management Association, ], 2005
eBooks
Stettner, Morey, author
McGraw-Hill, 2000
Buku Teks
Chan, Janis Fisher, author
[American Management Association;, ], 2002
eBooks
Elashmawi, Farid, author
Gramedia Pustaka Utama, 1996
Buku Teks
Jackson, Peter C., author
Pitman, 1987
Buku Teks