by AAK (Aksi Agraris Kanisius) $6.00
by Budi Tri Akoso $0.00
by Ir. M. Lies Suprapti $7.00
by Sutarni M. Soerjowinoto $6.00
by Ir. H. Rahmat Rukmana, MBA., M.Sc. & Uu Sugandi Saputra, B.Sc $6.00
by K.H. Moenawar Chalil $11.00
by Nyoman S. Pendit $12.00