by Abdul Rachman Shaleh $12.00
by Drs. H. Farozin $6.00
by Dr. Lijan Poltak Sinambel, M.M., M.Pd., dkk $9.00
by Andrias Harefa $7.00
by Prof. Djafaruddin $9.00
by Dr. C. Asri Budiningsih $7.00