Quang, P., 		Thanh, N., 		Truong, D., & 		Thuy, L.
(2019).
 Ophiorrhiza fangdingii (Rubiaceae), a New Record  for the Flora of Vietnam.
<em>VNU Journal Of Science: Natural Sciences And Technology, 35</em>(1).
doi:10.25073/2588-1140/vnunst.4828