by Reynold a. Nicholson $7.00
by Prof. Drs. S. Pamudji, M.P.A $11.00
by Nursalam $11.00
by Ir. M. Iqbal Hasan $9.00
by Dr. Ruth K $9.00
by dr. Sylvia D. Elvira $5.00
by Prof. Moeljatno, S.H $5.00