(3Gdbhd aj Yde GdfLhe (B/s - (3GdNWjH GdHZOGOj, CMeO Hf Ydj Hf KGHJs 392-463 (3g`(B.s; (3GdSYjO, jhSa Hf eMeOs ((3GdQjGV (B:s (3OGQ CWdS ddfTQ hGdJhRjY,s, 1999)
Keywords: (3GdESdGe hGdadcs; (3GdESdGe hGdfLhes; (3GdchGcHs; (3GdESdGe hGdYdes