by Ir. Sudadi Martodireso & Ir. Widada Agus Suryanto, MM $6.00
by Dr. Ir. Adji Sastrosupadi, MS $11.00
by Dr. Al. Purwa Hadiwardoyo, MSF. $4.00
by Ir. Heinz Frick $6.00
by A.M. Mangunhardjana, SJ $6.00
by Amat Jutawan $6.00
by Drs. Muhammad Kemal Dermawan $5.00
by Barda Nawawi Arief $7.00
by Asghar A. Engineer $6.00
by Wiwoho Soedjono, S.H $6.00
by - $6.00
by Yudo Sudarto, SP $5.00