by Nursalam $9.00
by Charles P. Kindleberger $7.00
by Drs. Slamet Santoso $6.00
by B. U. Hadikusumo $6.00
by Prof. dr. Sarwono Waspadji, Prof. dr. Slamet Suyono $5.00
by Hamilah Djoeana K., Fajar H. Nasution & Bambang S. Trenggono $6.00