by Prof. Mr. Notonagoro $9.00
by Henry Simamora, S.E $18.00
by Drs. Amin Widjaja Tunggal, Ak., M.B.A $11.00
by Fachruddin H.S $7.00
by Drs. Sofwan Badri $6.00
by Bachrawi Sanusi $9.00