by Ir. Sudadi Martodireso & Ir. Widada Agus Suryanto, MM $6.00
by Bole Malo, Agustinus $5.00
by Ir. M. Lies Suprapti $6.00
by Fritz Wilkening $12.00
by E. Jaspan Kusuma $6.00
by Drs. P. Sumardji $6.00