(3YPGHGJ GdYeQ GdLejd (B: s (3SjQI TYQjI (B/ s - (3aGQhb ThTIs ((3GdbGgQI (B: s (3OGQ ZQjH ddWHGYI hGdfTQ hGdJhRjY , s, 1992)
Keywords: (3GdTYQ GdYQHis; (3OhGhjf hbUGFOs