by Ir. Hieronymus Budi Santoso $5.00
by M. Ali Hasan $7.00
by William E. Heinecke $11.00
by Untung Sukardji $12.00
by Ir. Setijo Pitojo $12.00
by Zulkifli Zakaria $5.00
by Benyamin Lakitan $7.00
by E. Martasudjita, Pr. $3.00