• [Wiki] http://en.wikipedia.org/wiki/Cypsiurus_balasiensis.
• [avibase] https://avibase.bsc-eoc.org/species.jsp?lang=EN&avibaseid=83C40F897AF9D6BC&sec=lifehistory.
• [HailTrun1982] Hails, C. . J. and Turner, A. K. (1982). The breeding biology of the Asian palm swift Cypsiurus balasiensis. Ibis, 126:74--81. doi:10.1111/j.1474-919X.1984.tb03668.x.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [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.