by Ir. L. Widarto & FX. Sudarto C. Ph $5.00
by Hasanuddin $11.00
by $7.00
by Ir. Hieronymus Budi Santoso $6.00
by Thabrani $9.00
by Ny. Susmayati, B.A dan Ny. Hj. Asnidar $7.00