by A. Podgorecki $12.00
by Ir. Suharto $7.00
by Drs. Sudarsono, S.H., M.Si $7.00
by Drs. H. Kahar Masyhur $9.00
by Erman Rajagukguk, S.H $7.00
by Prof. Dr. Nur Nasry Noor, M.P.H $6.00