by Drs. B. Suryosubroto $9.00
by Sudjiman, H. Panuti $6.00
by Koolma, A. $7.00
by Dr. Sjarkawi, M.Pd $7.00
by Prof. Dr. H.A.R. Tilaar, MSc.Ed $11.00
by Dra. Moeslichatoen R., M.Pd $7.00