by Drs. Sudiyo $7.00
by Dr. W. Herdin Sibuea., dkk $7.00
by Dra. L. Simanjuntak $7.00
by Dr. Alfred Sutrisno, Sp., BS $13.00
by $7.00
by dr. Clifford Rose & dr. Paul Davies $6.00
by B. U. Hadikusumo $6.00