(3GdacQ GdGbJUGOi GdYQHi ai GdJfejI (B: (3fXQI GfJbGdjI ef GdYGde GdKGdK (B/ s - (3SYjO GdMVQis ([S.N] : (3OGQ GdfgVI GdYQHjI , s, 1990)
Keywords: (3GdGbJUGOs; (3GdOhd GdfGejIs; (3GdJfejI GdGbJUGOjIs