by Ir. Suprio Guntoro $6.00
by A. Lukasik, SCI. $4.00
by Ir. L. Widarto & FX. Sudarto C. Ph $5.00
by Drs. Yustinus Semiun, OFM $22.00
by Ir. Setijo Pitojo $7.00
by Bridget Mary Meehan $6.00