↑The New Dictionary of Cultural Literacy (Edisi 3rd). Houghton Mifflin Company. 2002. Diarsipkan dari asli tanggal March 14, 2009. Popular expression for all of the world's oceans.
↑""Seven" – Oxford Dictionaries". Oxford University Press. Diarsipkan dari asli tanggal 2016-06-03. Diakses tanggal 2015-04-10. the seven seas: 2. All the oceans of the world (conventionally listed as the Arctic, Antarctic, North Pacific, South Pacific, North Atlantic, South Atlantic, and Indian Oceans).
