by Prof. DR. Sukardjo $13.00
by Drs. G. Kartasapoetra $7.00
by Prof. J. Suprapto, M.A. APU $16.00
by Drs. Djoko Tri Prasetya, dkk $7.00
by Drs. Ahmad Rohani., H.M., M.Pd $6.00
by Ir. Suharto $11.00