(3GdehVI aj GdJUhQ GdESdGej (B/s - (3YHO Gddg, GdRgQGA aGWeIs ((3GdbGgQI (B:s (3ecJHI GdSfI,s, 1991)
Keywords: (3GdedGHS (B((3abg ESdGej(B)s; (3GdMLGH hGdSahQs