(3GdGMcGe GdJcdjajI aj bGfhf GdGee (B: s (3OQGSI ebGQfI (B/ s - (3SdGeI, Uaj GdOjf eUWai, s ((3GdbGgQI (B[(3eUQ(B] : s (3OGQ GdfgVI GdYQHjI, s, 2007)
(3jJVef GQLGYGJ HHdjhLQGajI (B: (3UaMI (B283-294.s
Keywords: (3GdbGfhf GdYGe(B.s; (3GdbGfhf GdOhdj(B.s