S. Appanah, A.H. Gentry, and J. V. LaFrankie. “LIANA DIVERSITY AND SPECIES RICHNESS OF MALAYSIAN RAIN FORESTS”. Journal of Tropical Forest Science (JTFS), vol. 6, no. 2, Dec. 1993, pp. 116-23, https://jtfs.frim.gov.my/jtfs/article/view/1880.