(3QhYI GdNdb (B: (3GSQGQ cjfhfI GdLfjf (B/ s - (3eGLO WjahQs ([S.N] : (3GdOGQ GdYQHjI ddYdhe , s, 1991)
Keywords: (3GdYdes; (3GdGLfIs; (3GdfThA hGdGQJbGAs; (3GdJcGKQs; (3GdejdGOs; (3GdYeds; (3GdNdGjGs