by Prof. Dr. H.A.R. Tilaar, MSc.Ed $11.00
by Taufik Abdullah $11.00
by Adiwarman Karim $12.00
by Mohammad Daud Ali $11.00
by Prof. Dr. J. Winardi, SE $9.00
by Drs. Ahmad Rohani., H.M., M.Pd $6.00