Niissalo, Matti A., Lahiru S. Wijedasa, Peter C. Boyce, and Jana Leong-Skornickova. 2014. “Hanguana neglecta (Hanguanaceae): A New Plant Species from a Heavily Collected and Visited Reserve in Singapore”. Phytotaxa 188 (1). Auckland, New Zealand:14–20. https://doi.org/10.11646/phytotaxa.188.1.2.