by Kelly S. $5.00
by Drs. Agus M. Hardjana, M.Sc., Ed $6.00
by Ir. M. Lies Suprapti $6.00
by Douglas Bloch $6.00
by Stefanus Pranjono $7.00
by J. Darminta, SJ $3.00
by Syam Hardy $7.00
by Ranakusuma, Boedisantoso $6.00
by - $5.00
by Ir. Daisy P. Sriyadi Hendaryono $6.00
by Calvin S. Hall & Gradner Lindzey $11.00