“WHICH CANOPY TIER SHOULD BE SAMPLED TO DETERMINE THE FERTILITY (NUTRITIONAL) STATUS OF ACACIA MANGIUM ON BRIS SOILS?”. JOURNAL OF TROPICAL FOREST SCIENCE 6, no. 1 (September 19, 1993): 48–55. Accessed January 18, 2026. https://jtfs.frim.gov.my/jtfs/article/view/1870.