(3GdYLGH aj HjGf GdCSHGH (B:s (3CSHGH GdfRhd (B/s - (3GHf MLQ GdYSbdGfj, TgGH GdOjf CHj GdaVd CMeO Hf Ydj s 773-852 (3g`(B.s; (3GdCfjS, YHO GdMcje eMeOs ((3GdOeGe(B- (3GdeedcI GdYQHjI GdSYhOjI (B:s (3OGQ GHf GdLhRj ddfTQ hGdJhRjY,s, 1997)
(3agGQS (B: (3U(B. 977-1315.s
Keywords: (3GdbQBfs -- (3fRhd GdbQBfs -- (3CSHGH GdfRhds