by Tom Bottomore $7.00
by Prof. DR. Taliziduhu Ndraha $11.00
by J. Price Gittinger $6.00
by F.X. Djumialdji, S.H $6.00
by Drs. Sidarta Gautama $7.00
by Drs. Amin Widjaja Tunggal, Ak., M.B.A $6.00