by J. I. G. M. Drost, SJ
$11.00

by Ir. H. Rahmat Rukmana
$5.00

by H. Rahmat Rukmana
$0.00

by Dr. E.G. Brahmaputra Marjadi, M.P.H
$7.00

by Enceng Surachman & Widodo Agus S.
$6.00

by Agung Kristiawan
$9.00