by Thomas Ballantine Irving $6.00
by Bambang Agus Murtidjo $7.00
by - $6.00
by Ir. F.X. Susanto Tumpal HS. Siregar $5.00
by Ir. H. Rahmat Rukmana $6.00
by Sakti A. Siregar $6.00
by Anthony De Mello, SJ. $6.00