(3GdYbhHGJ hGdefHhPhf aj GdTQb GdChSW (B:s (3GdYQGb(B-(3djHjG(B-(3GdShOGf (B/s - (3fjHdhc, Jjes ((3HjQhJ (B:s (3eQcR OQGSGJ GdhMOI GdYQHjI,s, 2001)
(3cTGa (B: (3U(B. 263-268.s
(3HHdjhLQGajI (B: (3U(B. 249-262.s
Keywords: (3GdYbhHGJ GdGbJUGOjIs -- (3GdYQGbs; (3GdYbhHGJ GdGbJUGOjIs -- (3djHjGs; (3GdYbhHGJ GdGbJUGOjIs -- (3GdShOGfs