by - $7.00
by Drs. Abdul Chaer $13.00
by Drs. O.P. Simorangkir., dkk $11.00
by Susmayati, B.A., dkk $6.00
by Drs. Inu Kencana Syafiie $11.00
by Drs. Ahmad Rohani., H.M., M.Pd $6.00