(3GSQGQ GdaGJjcGf (B/ s - (3djOd djhHhdOs; (3JMSjf MLGRi (B((3eJQLe(B)s ([S.N] : (3OGQ GdJVGef ddWHGYI hGdfTQ hGdJhRjY , s, 1989)
Keywords: (3GdaGJjcGfs; (3GdHGHhGJs; (3GdHGHhjIs; (3GdcfjSIs