by Muhammad Rawas $18.00
by Drs. M. Sastrapratedja $11.00
by Drs. Djalinus Syah, Dra. Syamsahrul,Dra. Azimar Enong $7.00
by Gutomo Priyatmono $12.00
by ISEI $13.00
by Ir. H. Rahmat Rukmana $6.00