by Drs. H. Inu Kencana Syafiie, M.Si $9.00
by Sujono Samba $6.00
by Prof. Dr. Sudarwan Danim $11.00
by Sudarto $6.00
by Prof. Subowo, dr. M.Sc., Ph.D $9.00
by Dr. Arthur M. Whitehill $7.00