by Dr. Nico Syukur Dister, OFM. $8.00
by Ir. Hatta Sunanta, B.Sc., MS $5.00
by NINIS $7.00
by SHAMSUDDIN ABDUL KADIR $6.00
by Mohammad Nurcholis dan Sri Sumarsih $7.00
by Alan B. Mountjoy $9.00