(3GdacQ GdSjGSi GdGeQjci(B: (3GdHYO GdadSai daf GOGQI TFhf GdOhdI GdGeQjcjI (B/ s - (3gTGe YHOGddgs; (3aQjT, fhQJhfs; (3SJjajfR, QjJTGQOs ((3HjQhJ (B: s (3GdeDSSI GdYQHjI ddOQGSGJ hGdfTQ , s, 1991)
Keywords: (3GdGMhGd GdSjGSjIs; (3GdhdGjGJ GdeJMOI GdGeQjcjIs; (3GdMQH GdGgdjIs; (3GdOSJhQ GdGeQjcis