by Ir. M. Lies Suprapti
$7.00

by Rachman Sutanto
$9.00

by Smith, John B. & Soesanto Mangkoewidjojo
$6.00

by Ir. Rabiatual Adawyah, M.P
$7.00

by Ir. H. Rahmat Rukmana, MBA., MSc.
$6.00

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