Chú thích Bitis

  1. 1 2 3 4 5 6 McDiarmid RW, Campbell JA, Touré T. 1999. Snake Species of the World: A Taxonomic and Geographic Reference, Volume 1. Washington, District of Columbia: Herpetologists' League. 511 pp. ISBN 1-893777-00-6 (series). ISBN 1-893777-01-4 (volume).[cần số trang]
  2. 1 2 Mallow D, Ludwig D, Nilson G. 2003. True Vipers: Natural History and Toxinology of Old World Vipers. Krieger Publishing Company, Malabar, Florida. 359 pp. ISBN 0-89464-877-2.[cần số trang]
  3. 1 2 Spawls S, Branch B. 1995. The Dangerous Snakes of Africa. Ralph Curtis Books. Dubai: Oriental Press. 192 pp. ISBN 0-88359-029-8.[cần số trang]
  4. 1 2 Bitis (TSN 634420) tại Hệ thống Thông tin Phân loại Tích hợp (ITIS).
  5. ↑ Largen, M., and Spawls, S. 2010. The Amphibians and Reptiles of Ethiopia and Eritrea. Edition Chimara: Frankfurt am Main. ISBN 978-3-89973-466-9[cần số trang]