by Th. Aq. M. Rochadi Widagdo, Pr.
$6.00

by Ir. Mul Muyani Sutedjo
$7.00

by Agus M. Hardjana
$6.00

by Dr. Budi Tri Akoso
$11.00

by Ir. Hieronymus Budi Santoso & Tata S.
$5.00

by H. Rahmat Rukmana
$6.00