by Ambarini $6.00
by Drs. Th. Nung Atasana $6.00
by Hilman Soetanto $16.00
by Sanny Poespo $18.00
by Dr. Ir. Akhmad Fauzi, M.Sc. & Dr. Dra. Suzy Anna, M.Si $12.00
by Sergio Zyman $9.00