(3WHbGJ Gdecdajf heQGJHge aj GdOGQ GdBNQI (B/s - (3GHf bje GdLhRjI, eMeO Hf CHj HcQ Hf CjhH,s 691-751 (3gLQjG(B.s ((3GdbGgQI (B:s (3ecJHI GdSdGe GdYGdejI,s, 1981)
Keywords: (3jhe GdbjGeIs; (3GdKhGH hGdYbGH (B((3ESdGe(B)s