by Ir. Rindit Pembayun, M.P. $6.00
by H. Rahmat Rukmana $6.00
by Bambang Agus Murtidjo $6.00
by ISEI $18.00
by Anthony De Mello, SJ. $4.00
by $4.00
by Djoehana Setyamidjaja, M.Ed $7.00