by $18.00
by P. S. Siswoputranto $13.00
by Ir. Bambang Cahyono $7.00
by Dr. Paul Suparno, SJ. Dkk $6.00
by Dr. Beate Jakob, Dr. Cristoph Benn & Dr. Erlinda Senturias $7.00
by DR. Ir. Liliek Agustina $6.00