• [Wiki] http://en.wikipedia.org/wiki/Cinnyris_jugularis.
• [DNA] http://lkcnhm.nus.edu.sg/dna/organisms/details/535.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [Mahe1990] Maher, W. J. (1990). Growth and development of the yellow-bellied sunbird Nectarinia jugularis in North Queensland. Emu, 91:58--61.
• [PrinPres1991] Prinzinger, R., A.Preßmar, and Schleucher, E. (1991). Body temperature in birds. Comp. Biochem. Physiol., 99A(4):499--506. doi:10.1016/0300-9629(91)90122-S.