(3GdeSFhdjI GdLfGFjI aj fWGb GdbGfhf GdOhdj GdLfGFj(B.s (3GdLRA GdChd,s (3GdLQjeI GdOhdjI hJWHjbGJgG (B/s - (3YdGe, YHO GdQMef MSjf Ydjs ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI,s, 1988)
(3HHdjhLQGajI (B: (3U(B. 301-316.s
Keywords: (3GdLQGFe GdOhdjIs; (3GdbGfhf GdOhdj GdLfGFjs