by Husein Umar $9.00
by Drs. Ec. Alex. S. Nitisemito dan Drs. M. Umar Burham. M.S $6.00
by - $11.00
by Drs. G. Kartasapoetra $7.00
by Dr. Nurjannah Ismail $11.00
by Freemont E. Kast $16.00
by Pipiet Senja $6.00