(3GdeYLe GdYdej ddeUWdMGJ GdbGfhfjI h GdeGdjI (B: s (3aQfSj (B- (3YQHj(B/(3YQHj (B- (3aQfSj (B/ s - (3TdGdg, jhSas ((3efTGI GdeYGQa,s, 1999)
Keywords: (3GdbGfhfs; (3GdESJKeGQGJs; (3GdeYGLes