(3GdMjGI aj GdaVGA GdNGQLj (B/ s - (3e (B. (3JSejjf, s; (3efPQ, aVd Gddgs ((3OeTb (B:s (3OGQ bJjHg,s, 1996)
Keywords: (3Yde Gdadcs; (3GdfXGe GdTeSjs; (3GdHjhdhLjG GdchfjIs