by Ir. Hieronymus Budi Santoso $6.00
by Ernest Mariyanto $4.00
by Drs. Suwarna Pringgawidagda, M.Pd $18.00
by Ir. M. Lies Suprapti $6.00
by Ir. Fauziah Muhlisah $6.00
by Paul F. Knitter $11.00