Addison-Wesley, 1987
Buku Teks
edited by Tan Jing Jee & You Poh Seng with Emily Ding
Addison-Wesley Publishing, 1987
Buku Referensi
Clardy, Alan, author
American Management Association, 2012
eBooks
Beck, John
John Wiley , 1980
Buku Teks
Richman, Larry, author
[American Management Association;, ], 2011
eBooks