by Ir. Eddy Afrianto & Ir. Evi Liviawaty $6.00
by Petra Widmer & Heinz Frick $5.00
by E. Martasudjita, Pr. $4.00
by $11.00
by C. Hanny Indraswari, SE $6.00
by AAK (Aksi Agraris Kanisius) $6.00