by Ir. Arifin Arief, M. P
$5.00

by M. Ghufron H. Kordi K
$7.00

by Gardner Franklin P; R. Brent Pearce dan Roger L. Mitchell
$7.00

by Ir. M. Lies Suprapti
$7.00

by A. Gunawan Admiranto
$9.00

by Anthony De Mello, SJ.
$4.00