(3fgQ Gdfjd (B: s (3OQGSI LZQGajI JMdjdjI (B/ s - (3GdTGej, UdGM GdOjf Ydjs ((3GdEScfOQjI (B:s (3efTCI GdeYGQa,s, 1995)
Keywords: (3eUQs; (3GdLZQGajGs; (3fgQ Gdfjds