by Lisa O. Engelhardt $6.00
by Dr. Ir. Adji Sastrosupadi, MS $11.00
by St. Darmawijaya, Pr $3.00
by Ir. Heinz Frick & Ch. Koesmartadi $6.00
by Suharso, A.S.P $9.00
by Dr. Martin Harun, OFM / LBI $7.00