Keith Rennolls and Yves Laumonier. “TREE SPECIES-AREA AND SPECIES-DIAMETER RELATIONSHIPS AT THREE LOWLAND RAIN FOREST SITES IN SUMATRA”. Journal of Tropical Forest Science (JTFS) 11, no. 4 (October 28, 1999): 784–800. Accessed February 23, 2025. https://jtfs.frim.gov.my/jtfs/article/view/1550.