by Ir. Sudadi Martodireso & Ir. Widada Agus Suryanto, MM $6.00
by ISEI $25.00
by Dr. Anton Bakker, SJ & Drs. Achmad Charris Zubair $6.00
by $4.00
by Dr. C. Groenen, OFM. $7.00
by Dr. C. Groenen, OFM. $8.00