by Rosady Ruslan $7.00
by Ir. Kukuh S. Dewobroto, dkk $7.00
by Alan Axelrod $9.00
by Wiwoho Soedjono, S.H $7.00
by Binyamin Torun $6.00
by Ali Masjono Mukhtar, S.E., M.Bit $7.00