Fitri Ayu Mardhatila et al. 2025. Effect of Collector Reagent Variations in the Flotation Process on the Percentage of Mass Recovery & Metal Recovery. Proceeding of the International Conferences on Engineering Sciences. 1, 2 (Jan. 2025), 86–93. DOI:https://doi.org/10.61132/iconfes.v1i2.24.