by Drs. Sriyono, dkk $9.00
by Ir. Suharto $7.00
by Dra. Ahmad Rohani H.M., M.Pd $9.00
by Drs. Abdul Chaer $11.00
by Drs. Harry Waluya $11.00
by Marihot P. Siahaan $16.00
by R.W. Haywood $7.00
by Drs. H. Achmad Kuzari $6.00
by Ir. Bambang Cahyono $7.00
by Bambang Agus Murtidjo $6.00
by Marga T $7.00
by - $9.00