Template:Wanntorp & Forster, 2007
- Wanntorp, L. & Forster, P.I. 2007. Phylogenetic relationships between Hoya and the monotypic genera Madangia, Absolmsia, and Micholitzia (Apocynaceae, Marsdenieae): Insights from flower morphology. Annals of the Missouri Botanical Garden 94: 36–55. DOI: 10.3417/0026-6493(2007)94[36:prbhat]2.0.co;2 JSTOR