by Drs. Amin Widjaja Tunggal, Ak., M.B.A
$9.00

by Chia Haris
$13.00

by Dr. H. Hamzah B. Uno, M.Pd
$7.00

by K. Usman
$5.00

by Prof. Dr. S. Nasution, M.A.
$7.00

by Clive Gray, Payaman Simanjuntak, dkk
$12.00