by K. Usman $6.00
by Zulkifli Zakaria $5.00
by Pandji Anoraga, S.E, M.M $6.00
by Hendra Nurtjahjo, S.H., M.Hum $7.00
by Dr. Ir. Hermawan Thaheer $11.00
by Drs. H. Kahar Masyhur $13.00