by Ir. Lisdiana Fachruddin
$5.00

by AAK (Aksi Agraris Kanisius)
$7.00

by Dr. Ir. Kemas Ali Hanafiah, M.S., dkk
$11.00

by H. Rahmat Rukmana
$5.00

by B.B. Triatmoko, SJ
$6.00

by Ir. Abbas Siregar Djarijah
$5.00