(3SdGM GdjbXGf dWQO GdTjWGf (B/s - (3GdSdeGf, YHO GdYRjR Hf eMeO Hf YHO GdQMef,s 1337-1422 (3gLQjs ([(3O(B.(3e(B.]s (3YHO GdYRjR Hf eMeO GdSdeGf ,s, 1988)
Keywords: (3GdOYhI GdESdGejIs; (3GdhYX hGdEQTGOs