by AAK (Aksi Agraris Kanisius) $7.00
by Ir. H. Rahmat Rukmana & Yuyun Y $6.00
by Ir. Loekas Soesanto, M.S., Ph.D $11.00
by Charles P. Kindleberger $11.00
by Sudradjat $7.00
by Michael P. Todaro $18.00