(3GdahGFO (B/s - (3GHf bje GdLhRjI, eMeO Hf CHj HcQ Hf CjhH,s 691-751 (3gLQjG(B.s; (3Yjhf , HTjQ eMeO s ((3OeTb (B:s (3ecJHI OGQ GdHjGf ,s (3GdQjGV(B:s (3ecJHI GdeDjO,s, 1987)
Keywords: (3GdhYX hGdEQTGOs; (3GdCNdGb GdESdGejIs; (3GdBOGH GdESdGejIs; (3GdOYhI GdESdGejIs