Olalekan O.O., and Ogunlaja O. O. 2026. “Comparative Assessment of Portable X-Ray Fluorescence and Atomic Absorption Spectrophotometry for Metal Analysis in Urban Dumpsite Soils of Ibadan, Nigeria”. JOURNAL OF BASICS AND APPLIED SCIENCES RESEARCH 4 (2): 200-206. https://doi.org/10.4314/jobasr.v4i2.20.