by Prof. Dr. Soekanto $5.00
by Ir. AG. Kartasapoetra $7.00
by Drs. G. Kartasapoetra $9.00
by Drs. Mulyono HAM, M.Pd $11.00
by Prof. dr. Sarwono Waspadji, Prof. dr. Slamet Suyono $9.00
by W. James Popham $7.00