(3GdaGcgI GdeJSGbWI GdGhQGb(B: (3RQGYJgG QYGjJgGhGfJGLgG (B/ s - (3YGWa eMeO GHQGgjes ((3GdbGgQI (B: s (3efTGI GdeYGQa , s, 1990)
Keywords: (3GdahGcgIs; (3GTLGQ GdaGcgIs; (3JcGKQ GdRghQs; (3GdHSGJjfs; (3JcGKQ GdfHGJs