Schmelzer, G. H., Gurib-Fakim, A., Arroo, R., Bosch, C. H., de Ruijter, A., Simmonds, M. S. J., Lemmens, R. H. M. J., & Oyen, L. P. A. (2008). Plant Resources of Tropical Africa 11(1) : Medicinal plants 1. (Plant Resources of Tropical Africa; No. 11(1)). PROTA Foundation [etc.]. https://edepot.wur.nl/417238