by Hutabarat, Sahala & Evans, Stewart M $5.00
by Goedberg, Alvin & Carl Larson $7.00
by M. Aziz Toyibin dan A. Kosasih Djahiri $12.00
by Dr. Sjarkawi, M.Pd $7.00
by Drs. Abu Ahmadi $9.00
by G. Siregar, Laksmi $6.00