by Ir. Ari Wijayani Purwanto $11.00
by AAK (Aksi Agraris Kanisius) $6.00
by Ir. Heinz Frick & Pujo L. Setiawan $7.00
by B. U. Hadikusumo $6.00
by H. Rahmat Rukmana $6.00
by Drs. D. Ketut Sukardi $11.00