(3JLGQ GdbGgQI ai GdYUQ GdYKeGfi (B: s (3SjQI GHh WGbjI TGgHfOQGdJLGQ (B/ s - (3QDha YHGSs; (3fddi MfGs ((3GdbGgQI (B: s (3GdOGQ GdeUQjI GddHfGfjI , s, 1997)
Keywords: (3GdJLGQs; (3GdJLGQI ai eUQs; (3GdJLGQ (B- (3JQGLes; (3GSeGYjd GHhWGbjIs