(3CReI GdJQHjI aj GdhWf GdYQHj ef efXhQ ESdGej (B/ s - (3aQMGf, ESMb CMeOs ((3YeGf (B:s (3OGQ GdaQbGf ddfTQ hGdJhRjY,s, 1986)
Keywords: (3GdJQHjIs; (3GdHdOGf GdYQHjIs; (3JGQjN GdJQHjIs