by JB. Banawiratma, SJ.
$4.00

by Ir. M. Lies Suprapti
$7.00

by H. Rahmat Rukmana
$5.00

by Ir. Heinz Frick & Ch. Koesmartadi
$6.00

by Br. Thomas Voets, CSA.
$3.00

by Ir. Budi Samadi
$6.00