(3GddgH GdeWgQ(B: (3OQGSGJ JWHjbjI ai bUI GdMQH (B/ s - (3eMeO LHjQs ((3GdYQGb (B: s (3OGQ GdTFhf GdKbGajI , s, 1988)
Keywords: (3GdYQGbs; (3GdSjGSIs; (3GdMQhHs