JS Lee, HS Seo, MH Phua, R Ong, and B Choi. “DETERMINING ABOVEGROUND BIOMASS OF A FOREST RESERVE IN MALAYSIAN BORNEO USING K-NEAREST NEIGHBOUR METHOD”. Journal of Tropical Forest Science (JTFS), vol. 26, no. 1, Jan. 2014, pp. 58-68, https://jtfs.frim.gov.my/jtfs/article/view/243.