by $4.00
by Ir. Hieronymus Budi Santoso $5.00
by Bambang Agus Murtidjo $6.00
by O.S. Eoh, Sh, Ms $5.00
by Dr. Al. Purwa Hadiwardoyo, MSF. $4.00
by Ir. H. Rahmat Rukmana $6.00