1. 1) Theo, C., Dianne, D., John, P. M. (Nagao, T., trans.). “Our Stolen Future (Ubawaresi Mirai)”, Shoueisha, 1997, p. 120-121. (ISBN4-88135-513-9)
2. 2) Yokota, A. et al. “Shokubutu Bunsi Seirigaku Nyuumon”, Gakkai Shuppan Senta, 1999, p. 141. (ISBN4-7622-2921-0)
3. 3) Tanaka, M. “Shiritai Saiensu Henna Doku Sugoi Doku”, Gijutu Hyouronsha, 2006, p. 130. (ISBN4-7741-2858-9)
4. 4) Okui, M. “Dokusou Daihyakka”, Detahausu, 2003, p. 189. (ISBN4-88718-726-2)
5. 5) Funayama, S. “Doku to Kusuri no Kagaku”, Asakura Shoten, 2007, p. 104. (ISBN978-4-254-10205-5)