(3efgd GddWGja aj GdcfGaI h GdbWGja (B/ s - (3GdSjhWj, LdGd GdOjf CHh GdaVd YHO GdQMefs ((3GdbGgQg (B:s (3OGQ GdaVjdI,s, 1994)
Keywords: (3GdTYQ GdYQHjs