by $7.00
by Vincent Gaspersz $13.00
by Drs. D. Ketut Sukardi $7.00
by J. Stallard, Terj. Drs. Hasymi Ali $11.00
by Drs. Ec. Alex. S. Nitisemito dan Drs. M. Umar Burham. M.S $6.00
by Ir. Suharto $9.00
by Drs. Tgk. H.Z.A. Syihab $5.00
by - $6.00