by DM. Etter, Terj. Drs. Kusuma Wiraman $13.00
by Drs. Amin Widjaja Tunggal, Ak., M.B.A $11.00
by Drs. Amin Widjaja Tunggal, Ak., M.B.A $9.00
by Drs. Sudarsono, S.H., M.Si $7.00
by A.H. Manurung, S.E $6.00
by Ir. Kaslan A. Tohir $12.00