@article{ma2019recycling,
  title={Recycling of Galvanic Copper Sludge for Pure Copper Production},
  author={Ma-ud, N and Khumkoa, S and Buahombura, P and Piyawit, W and Patcharawit, T and others},
  journal={J Material Sci Eng},
  volume={8},
  number={540},
  pages={2},
  year={2019}
}