Rujukan Ragam aktif

  1. ↑ O'Grady, William, John Archibald, Mark Aronoff, dan Janie Rees-Miller (eds.) (2001). Contemporary Linguistics: An Introduction Edisi keempat. Boston: Bedford/St. Martin's. ISBN 0-312-24738-9
  2. ↑ Saeed, John (1997). Semantics. Oxford: Blackwell. ISBN 0-631-20035-5