by Dr. Niels Mulder $0.00
by Drs. Ishak Farid $6.00
by Prof. Dr. Burhanuddin Salam, M.M $7.00
by Drs. H. Kahar Masyhur $16.00
by Iwan Prayogo Suryohadibroto $12.00
by Sidarta Gautama $7.00