(3KdGK eMGVQGJ aj GdYde hGdOYhI (B/s - (3GdahRGf, UGdM Hf ahRGf Hf YHO Gddg,s 1363 (3gLQjG(B-s ((3GdQjGV (B:s (3ecJHI GHf NRjeI,s, 1991)
Keywords: (3GdESdGe hGdYdes; (3GdOYhI GdESdGejIs; (3GdhYX hGdEQTGOs