Rujukan Sepal

  1. ↑ Daripada Perancis sépale, daripada Latin Baru sepalum, paduan sep- daripada Greek skepē, "penutup/pembalut" dan -alum daripada Latin Baru petalum, "kelopak", dipengaruhi Perancis pétale "kelopak".
  2. ↑ "sepal". Oxford Dictionary. 
  3. ↑ "sepal". Collins Dictionary. 
  4. ↑ Stearn, William T. (2000). Botanical Latin, Ed. ke-4: 38-39. ISBN 0-88192-321-4
  5. ↑ Necker, N.J. de (1790). Corollarium ad Philosophiam botanicam Linnaei 18, 31
  6. ↑ Shorter Oxford English dictionary, Ed. ke-6. United Kingdom: Oxford University Press. 2007. m/s. 3804. ISBN 0199206872. 
  7. ↑ Jackson, Benjamin, Daydon; A Glossary of Botanic Terms with their Derivation and Accent; Diterbitkan Gerald Duckworth & Co. London, Ed. ke-4 1928
  8. ↑ Tucker, T. G. (1931). A Concise Etymological Dictionary of Latin. Halle (Saale): Max Niemeyer Verlag. 
  9. ↑ Beentje, Henk (2010). The Kew Plant Glossary. Richmond, Surrey: Royal Botanic Gardens, Kew. ISBN 978-1-84246-422-9. , m/s. 106