by Prof. Dr. Husaini Usman, M.Pd., M.T $16.00
by Alan B. Mountjoy $9.00
by R. S. Stainton $7.00
by Ali Imron, M.Pd $7.00
by Prof. Dr. Oemar Hamalik $9.00
by Drs. Daryanto $11.00