by Gerry Spence $13.00
by Prof. J. Suprapto, M.A. APU $16.00
by Drs. Hari Amanto & Drs. Daryanto $7.00
by ISEI $18.00
by Dr. Hamzah B. Uno, M.Pd $0.00
by Soenjono Dardjowidjojo $7.00
by Soedharyo Soimin, S. H. $11.00