by $4.00
by Ir. Heinz Frick & Moediartianto $7.00
by Ir. Setijo Pitojo $6.00
by Ir. H. Rahmat Rukmana $6.00
by Soedarso $6.00
by Suharso, A.S.P $6.00
by G. Sexilla, Cousuelo, dkk $7.00
by Drs. Daryanto $7.00