Rujukan Tumbuhan_pembuluh

  1. ↑ D. Edwards; Feehan, J. (1980). "Records of Cooksonia-type sporangia from late Wenlock strata in Ireland". Nature. 287 (5777): 41–42. doi:10.1038/287041a0. 
  2. ↑ Abercrombie, Hickman & Johnson. 1966. A Dictionary of Biology. (Penguin Books
  3. ↑ "ITIS Standard Report Page: Tracheobionta". Dicapai 20 September 2013. 

Templat:Pengelasan tumbuhan

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