Rujukan Protura

  1. 1 2 Andrzej Szeptycki (2007). "Catalogue of the World Protura" (PDF).
  2. ↑ "Proturans / Coneheads". North Carolina State University College of Agriculture and Life Sciences. Dicapai pada July 30, 2008. Pautan luar dalam |publisher= (bantuan)
  3. ↑ "Order Protura - Coneheads". http://bugguide.net bugguide.net, hosted by Iowa State University Department of Entomology. Dicapai pada July 30, 2008. Pautan luar dalam |publisher= (bantuan)
  4. ↑ Charles S. Henry (2005). "Insect phylogeny". University of Connecticut.
  5. ↑ Ryuichiro Machida (2006). "Evidence from embryology for reconstructing the relationships of hexapod basal clades" (PDF).
  6. ↑ Charles E Cook, Qiaoyun Yue & Michael Akam (2005). "Mitochondrial genomes suggest that hexapods and crustaceans are mutually paraphyletic". Proceedings of the Royal Society B. 272 (1569): 1295–1304. doi:10.1098/rspb.2004.3042. PMC 1564108. PMID 16024395.
  7. ↑ P. J. Gullan & P. S. Cranston (1994). The insects: an outline of entomology. Chapman and Hall. ISBN 0-412-49360-8.