by Ir. Hieronymus Budi Santoso $5.00
by Ir. H. Rahmat Rukmana $6.00
by Warisno $6.00
by $4.00
by Drs. Agus M. Hardjana, M.Sc., Ed $5.00
by Dr. FX. Mudji Sutrisno, SJ & Hendra Putranto (Ed) $12.00