by Maurice Duverger/Alfian $12.00
by Jopie Jusuf $11.00
by Drs. Amin Wijaja Tunggal, M.B.A $9.00
by Suherman Rosyidi $18.00
by Dennis L. Poster $9.00
by Drs. Ec. Alex. S. Nitisemito dan Drs. M. Umar Burham. M.S $6.00
by $7.00