by Drs. Amin Widjaja Tunggal, Ak., M.B.A $6.00
by Freddy Rangkuti $13.00
by Trim Sutidja $6.00
by Redaksi (Penghimpun) $11.00
by Prof. Dr. Sondang P. Siagian, M.P.A $7.00
by - $16.00