James William Ariend; Ismail Marzuki. Analysis of the Role of Iron (Fe) Content on Nickel Distribution in Limonite and Saprolite Zones Using Energy Dispersive X-Ray Fluorescence (ED-XRF). JGCEE 2026, 2 (2), 94-106. https://doi.org/10.63288/jgcee.v2i2.26.