Rujukan Pupa

  1. ↑ Borror, D. J. Dwight M. DeLong and Charles A. Triplehorn. An introduction to the study of insects. New York: Holt, Rinehart & Winston. Sixth Edition. Templat:Year missing Templat:ISBN missing
  2. ↑ Darby, Gene (1958). What is a Butterfly. Chicago: Benefic Press. m/s. 19. 
  3. ↑ AMNH Accessed December 2006
  4. ↑ The Entomologist
  5. ↑ Darby, Gene (1958). What is a Butterfly. Chicago: Benefic Press. m/s. 41. 
  6. ↑ Malcolm J. Scoble. 1992. The Lepidoptera: form, function and diversity. Oxford: Oxford University Press.