(3VeGfGJ Mbhb GdEfSGf hMeGjJgG (B:s (3habkG ddbGfhf GdOhdi hGdJTQjY GdhWfi (B/ s - (3fHjd YHO GdQMef fGUQ GdOjfs (b, 2009)
. 230-221 (3HHdjhLQGajG(B: (3UaMGJ(B.s
(3GdfU CZdHg HGddZI GdYQHjI eY HYV GdfUhU GdEfLdjRjIs
Keywords: (3Mbhb GdEfSGfs; (3GdbGfhf GdOhdj GdYGes