(3JWhQ GdYde GdYQHj ef GdaJM GdGSdGej MJi eWdY GdbQf GdYTQjfs - (3YHO GdgGOj(B. (3egOjs (1986)
Keywords: (3GdCYdGe s; (3GdGQOf(B- (3CYdGe s; (3GdYQH (B- (3QGjGJ GdQGjGJ s