International Review of Business
The Society of Business Administration, Kwansei Gakuin University, 2009
 Majalah, Jurnal, Buletin
Harvard business review on business and the environment
Harvard Business School Press, 2000
 Buku Teks
Harvard business review on breakthrough thingking
Harvard Business School Press, 1999
 Buku Teks
Harvaed business review on negotiation and conflict resolution
Harvard Business School, 2000
 Buku Teks
Harvard business review on negotiation and conflict resolution
Harvard Business School Press, 2000
 Buku Teks