by Drs. Ec. Alex. S. Nitisemito dan Drs. M. Umar Burham. M.S $6.00
by Masyhud Ali $22.00
by Kasmir, S.E., M.M $13.00
by Bakhtiar, Numan Agus, Murisal $7.00
by Iwan Simatupang $6.73
by K. Usman $6.00