by Ir. Eddy Afrianto & Ir. Evi Liviawaty $7.00
by Muhammad Chirzin $5.00
by Dr. Ir. Kemas Ali Hanafiah, M.S., dkk $7.00
by H. Rahmat Rukmana $5.00
by AAK (Aksi Agraris Kanisius) $7.00
by Heinz Frick & Tri Hesti Mulyani $7.00