(3bGfhf GdELQGAGJ GdLfGFjI (B:s (3GdLRA GdKGfj ,s (3GdeMGceI hGdWYhf (B/s - (3YhV eMeOs ([(3ecGf GdfTQ ZjQ eMOO(B] :s [(3GdfGTQ ZjQ eMOO(B] (3,s, 1995)
. 312-303 (3HHdjhLQGajG(B: (3UaMGJ(B.s
(3jTJed Ydi EQLGYGJ HHdjhLQGajIs
Keywords: (3GdeMGceI GdLfGFjIs