Thomsett, Michael C., author
American Management Association, 2006
eBooks
David Y.W. Ho
Butterworth Asia, 1998
Buku Teks
Shenkel, William M., author
McGraw-Hill , 1978
Buku Teks
Arnold, Alvin L., author
John Wiley & Sons, 1993
Buku Referensi
Lefcoe, George, author
LexisNexis, 1993
Buku Teks