^Mjöberg, E. 1925. An Expedition to the Kalabit Country and Mt. Murud, Sarawak. Geographical Review15(3): 411–427. doi:10.2307/208563
^Beaman, J. H., and C. Anderson. 1997. The summit flora of Mt. Murud, Sarawak, Malaysia. Contributions from the University of Michigan Herbarium 21: 85-141.