Goldberg, David E., author
McGraw-Hill , 1995
Buku Teks
Wellington, Pat, author
Institute of South East Asia Studies, 2009
eBooks
Cadwell, Charles M., author
[American Management Association, ], 2004
eBooks
Kush, Brian D., author
John Wiley & Sons, 2009
Buku Teks
Caroselli, Marlene
McGraw-Hill, 2000
Buku Teks