(3eHOC YOe GdJONd (B/ s - (3YHO GdQGRb fGLi eMeO GdhGbOis (b, 2018)
. 269-257(3HHdjhLQGajG(B: (3UaMGJ(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3Mbhb GdEfSGfs; (3GdbGfhf GdOhdj GdYGes