(3hdO Ge HfJ (B/ s - (3GdOGQ GdOhdjI ddfTQ hGdJhRjYs; (3HQTf , LGcs ([S.N] : (3GdOGQ GdOhdjI ddfTQ hGdJhRjY , s, 1991)
Keywords: (3GdGe GdMGeds; (3GdhdGOIs