by Freddy Rangkuti $13.00
by Ny. Susmayati, B.A $7.00
by Iwan Prayogo Suryohadibroto $12.00
by YW. Sunindhia, S.H $9.00
by Prof. DR. Made Pidarta $11.00
by Steven D. Levitt & Stephen J. Dubner $11.00
by Hilman Hariwijaya $5.00