by $7.00
by Prof. DR. Koentjaraningrat $9.00
by Sution Usman Adji, S.H., dkk $13.00
by N. John Myer $12.00
by A. W. van den Ban & H. S. Hawkins $12.00
by Ir. Eddy Afrianto & Ir. Evi Liviawaty $6.00
by INDU SUNDARESAN $7.00