(3GdJchjf GdJGQjNi ddGeI GdYQHjI OQGSI ai GdghjI hGdhYi (B/ s - (3YHOGdYRjR GdOhQi s ([S.N] : (3eQcR OQGSGJ GdhMOI GdYQHjI , s, 1984)
Keywords: (3GdYGde GdYQHis; (3GdKbGaI GdYQHjIs; (3GdLeYjGJ GdhWfjIs; (3GdeLJeYGJ GdGSdGejIs; (3GdeLJeY GdYQHis