by Kunarjo $9.00
by Anwar, Moh. Arsjad, dkk $6.00
by Drs. H.M. Yacob Ibrahim $11.00
by Bilson Simamora $11.00
by - $13.00
by Drs. Amin Widjaja Tunggal, Ak., M.B.A $7.00
by Michael Sherraden $13.00