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കേരളത്തിലെ അപൂർവ്വവും വംശനാശഭീഷണിയുള്ളതുമായ സസ്യങ്ങൾ

• Juan J. Morrone (1994). "On the Identification of Areas of Endemism" (PDF). Systematic Biology. 43 (3): 438–441. doi:10.1093/sysbio/43.3.438.
• CDL Orme, RG Davies, M Burgess, F Eigenbrod; Burgess; Eigenbrod; Pickup; Olson; Webster; Ding; Rasmussen; Ridgely; Stattersfield; Bennett; Blackburn; Gaston; Owens; et al. (18 August 2005). "Global hotspots of species richness are not congruent with endemism or threat". Nature. 436 (7053): 1016–9. Bibcode:2005Natur.436.1016O. doi:10.1038/nature03850. PMID 16107848. {{cite journal}}: Explicit use of et al. in: |author2= (help); Unknown parameter |displayauthors= ignored (|display-authors= suggested) (help)CS1 maint: multiple names: authors list (link)
• JT Kerr (October 1997). "Species Richness, Endemism, and the Choice of Areas for Conservation" (PDF). Conservation Biology. 11 (55): 1094–1100. doi:10.1046/j.1523-1739.1997.96089.x. JSTOR 2387391. Archived from the original (PDF) on 2017-08-09. Retrieved 2016-02-25.