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"Castor fiber". ITIS. เก็บจากแหล่งเดิมเมื่อ November 3, 2020. สืบค้นเมื่อ September 21, 2020.
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jstor.org
David L. Correll; Thomas E. Jordan; Donald E. Weller (June 2000). "Beaver pond biogeochemical effects in the Maryland Coastal Plain". Biogeochemistry. 49 (3): 217–239. doi:10.1023/a:1006330501887. JSTOR1469618.
Quentin D. Skinner; John E. Speck; Michael Smith; John C. Adams (March 1984). "Stream Water Quality as Influenced by Beaver within Grazing Systems in Wyoming". Journal of Range Management. 37 (2): 142–146. doi:10.2307/3898902. JSTOR3898902.
lexico.com
"Beaver". Lexico. คลังข้อมูลเก่าเก็บจากแหล่งเดิมเมื่อ 2021-01-30. สืบค้นเมื่อ January 22, 2021.
"Castor". Lexico. คลังข้อมูลเก่าเก็บจากแหล่งเดิมเมื่อ 2021-02-08. สืบค้นเมื่อ January 22, 2021.
R. C. A. Thompson (November 2000). "Giardiasis as a re-emerging infectious disease and its zoonotic potential". International Journal of Parasitology. 30 (12–13): 1259–1267. doi:10.1016/S0020-7519(00)00127-2. PMID11113253.
Lev E (March 2003). "Traditional healing with animals (zootherapy) : medieval to present-day Levantine practice". J Ethnopharmacol. 85 (1): 107–18. doi:10.1016/S0378-8741(02)00377-X. PMID12576209.