by Ir. H. Rahmat Rukmana, MBA., M.Sc. & Uu Sugandi Saputra, B.Sc
$6.00

by Tim Agro Kanisius
$9.00

by A. Eddy Kristiyanto, OFM
$7.00

by H. Rahmat Rukmana
$6.00

by Dr. Nico Syukur Dister, OFM.
$15.00

by Soekartawi
$9.00