by Drs. K.H. Toto Tasmara $13.00
by Ir. M. Lies Suprapti $6.00
by J. Donald Walters $5.00
by Ir. Hieronymus Budi Santoso $6.00
by Drs. Suwarna Pringgawidagda, M.Pd $18.00
by Stefan Leks $16.00