by Drs. Agus M. Hardjana, M.Sc., Ed $6.00
by Leo Van Beurden, OSC $6.00
by Said Hawwa $7.00
by Drs. Aloysius Soenarto & Stanislaus Suliangto $4.00
by Ir. H. Rahmat Rukmana $6.00
by Dr. Siti Zulaikha et al $6.00