by Ir. Arifin Arief, M. P
$5.00

by James T. Burtchaell, CSC
$4.00

by
$4.00

by Dr. P. J. Suwarno, S.H
$7.00

by Ir. Daisy P. Sriyadi Hendaryono, M.Si & Ir. Ari Wijayani
$6.00

by Ir. Budi Samadi & Ir. Bambang Cahyono
$7.00