by Drs. Muchdarsyah Sinungan $7.00
by Ir. Mul Muyani Sutedjo $6.00
by Michael Le Boeuf $11.00
by $7.00
by Drs. H. Moh. Pabundu Tika, M.M $7.00
by A. Tresna Sastrawijaya, M.Sc $9.00
by Dra. Dwi Hayu Agustini, MBA $9.00