by Ir. Hieronymus Budi Santoso $5.00
by Dr. Thohir Luth, M.A $7.00
by Ir. H. Rahmat Rukmana, MBA., MSc. $5.00
by Ir. M. Lies Suprapti $6.00
by Ernest Mariyanto $6.00
by J. Sudarmita $9.00