by Drs. B. Suryosubroto $9.00
by Drs. H. Kahar Masyhur $9.00
by Sonny Yuwono, Edy S $9.00
by $7.00
by Sofyan Syafri Harahap $13.00
by Dr. B. Siswanto Sastrohadiwiryo $9.00