(3GdeJNjd hGdJhGUd(B: (3eaGQbGJ GdYQH hGdZQH (B/ s - (3eMeO fhQGdOjfs ([S.N] : (3OGQ GdefJNH GdYQHi ddOQGSGJ hGdfTQ hGdJhRjY , s, 1993)
Keywords: (3GdMVGQI GdYQHjI GdGSdGejI (B- (3GdeYGQa GdHMQjIs; (3GdadSaIs; (3GdYQHs; (3GdZQGFRs; (3GdZQHs; (3GdMVGQI GdYQGbjIs