J.H. Fownes, and R.A. Harrington. “ALLOMETRY OF WOODY BIOMASS AND LEAF AREA IN FIVE TROPICAL MULTIPURPOSE TREES”. Journal of Tropical Forest Science (JTFS), vol. 4, no. 4, June 1992, pp. 317-30, https://jtfs.frim.gov.my/jtfs/article/view/2015.