by Drs. H. Burhanuddin Salam, M.M $11.00
by A.H. Manurung, S.E $6.00
by Rudi S. Pontoh $7.00
by Alvin S. Johnson $11.00
by $6.00
by Drs. Sudarsono, S.H., M.Si $11.00
by Louis Irving Horowitz $12.00