(3fbO Gdefbhd hGdeMc GdeejR Hjf GdeQOhO hGdebHhd hgh GdcJGH GdPj WHY HGSe GdefGQ Gdefja aj GdUMjM hGdVYja (B/ s - (3EHf Gdbje GdLhRjg, TeS GdOjf CHh YHO Gddg eMeOs; (3ShjOGf, MSf GdSeGMjs ((3HjQhJ (B: s (3OGQ GdbGOQj ddWHGYI hGdfTQ hGdJhRjY, s, 1990)
Keywords: (3GdESdGe(B. s; (3GdMOjK GdTQja(B. s