by Drs. H.M. Daryanto $9.00
by Prof. J. Suprapto, M.A. APU $11.00
by Drs. H. Burhanuddin Salam, M.M $11.00
by Prof. Drs. Piet A. Sahertian $7.00
by M. Aziz Toyibin dan A. Kosasih Djahiri $12.00