Fritzsche, David J.
Business ethics: a global and managerial perspective
McGraw-Hill, 2005
 Buku Teks SO
Carman, Robert A.
Basic algebra : a guided approach
John Wiley & Sons, 1982
 Buku Teks SO
Hamburg, Morris
Basic statistics : a modern approach
Harcourt Brace Jovanovick, 1985
 Buku Teks SO
McCarthy, E. Jerome
Basic marketing : a managerial approach
Richard D. Irwin, 1990
 Buku Teks SO
McCarthy, E. Jerome
Basic marketing : a managerial approach
Richard D. Irwin, 1978
 Buku Teks SO