(3jhejGJ hhKGFb GdhMOI GdYQHjI(B(-1979 ) / s - (3eQcR OQGSGJ GdhMOI GdYQHjIs ([S.N] : (3eQcR OQGSGJ GdhMOI GdYQHjI , s, 1982)
Keywords: (3GdhMOI GdYQHjIs; (3GdHHdjhLQGajGJ GdehVhYjIs; (3GdHHdjhLQGajGJ GdbhejIs