Edward F. Gilman. Malpighia coccigera(PDF). Fact Sheet FPS-380. University of Florida IFAS Cooperative Extension Service. 1999年10月 [2009-05-16]. (原始内容存档(PDF)于2005-02-21) (英语).
Edward F. Gilman. Malpighia coccigera(PDF). Fact Sheet FPS-380. University of Florida IFAS Cooperative Extension Service. 1999年10月 [2009-05-16]. (原始内容存档(PDF)于2005-02-21) (英语).