by Ir. Jumar $9.00
by Drs. Sudarsono, S.H., M.Si $7.00
by Baum, Warren C & Stokes M. Tolbert $9.00
by Ir. Endar Sugiarto, B.A $6.00
by Pandji Anoraga, S.E., M.M $13.00
by Hasan Asy'ari Oramahi $7.00