(3cdjdI h OefI (B/ s - (3GHf GdebaY (B: (3GHheMeO YHOGddgs ((3GdbGgQI (B: s (3OGQ GdacQ GdYQHi , s, 1990)
Keywords: (3GdGOH GdYQHis; (3GdHdGZI GdYQHjIs; (3GdGOH GdTYHis; (3cdjdI hOefIs