Tài liệu tham khảo WikiPedia: Tôm_hùm_đất_xanh http://www.aquariumdomain.com/viewFreshwaterInvert... http://www.theaquariumwiki.com/Procambarus_alleni http://www.itis.gov/servlet/SingleRpt/SingleRpt?se... https://web.archive.org/web/20160807055824/http://...