(3GdJhGQjN GdeMdjI dEbdje NQGSGf (B/ s - (3GdMOjKj, bMWGf YHO GdSJGQs ((3GdHUQI (B:s (3hRGQI GdJYdje GdYGdj h GdHMK GdYdej (B- (3LGeYI GdHUQI,s, 1990)
Keywords: (3BSjG GdhSWis; (3GdJGQjNs; (3GdHdOGf GdESdGejIs