Rajakullayiswamy, K., S. Sandhyarani, S. Karuppusamy, and T. Pullaiah. 2012. “The Rediscovery of Brachystelma Volubile (Apocynaceae – Asclepiadoideae)”. Rheedea 22 (2): 107-10. https://doi.org/10.22244/rheedea.2012.22.02.10.