熱水泉
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↑ Madigan MT, Martino JM (2006). Brock Biology of Microorganisms (11th ed.). Pearson. pp. 136. ISBN 0-13-196893-9
↑ Naegleria - eMedicine
↑ Shinji Izumiyama, Kenji Yagita, Reiko Furushima-Shimogawara, Tokiko Asakura, Tatsuya Karasudani, Takuro Endo (July 2003). “Occurrence and Distribution of Naegleria Species in Thermal Waters in Japan”. J Eukaryot Microbiol 50: 514–5. doi:10.1111/j.1550-7408.2003.tb00614.x. PMID 14736147. http://www.blackwell-synergy.com/doi/full/10.1111/j.1550-7408.2003.tb00614.x?cookieSet=1.
↑ Yasuo Sugita, Teruhiko Fujii, Itsurou Hayashi, Takachika Aoki, Toshirou Yokoyama, Minoru Morimatsu, Toshihide Fukuma, Yoshiaki Takamiya (May 1999).