@article{laokhen2022recovery,
  title={Recovery of nickel from spent electroplating solution by hydrometallurgical and electrometallurgical process},
  author={LAOKHEN, Piamsak and Natthicha, MA-UD and YINGNAKORN, Tanongsak and PATCHARAWIT, Tapany and KHUMKOA, Sakhob},
  journal={Journal of Metals, Materials and Minerals},
  volume={32},
  number={2},
  pages={95--100},
  year={2022}
}

@inproceedings{kansomket2020study,
  title={Study on Leaching of Molybdenum from a Spent HDS Catalyst},
  author={Kansomket, Chatisa and Chandakhiaw, Thanapon and Ma-ud, Natthicha and Yingnakorn, Tanongsak and Patcharawit, Tapany and Khumkoa, Sakhob},
  booktitle={Materials Science Forum},
  volume={1009},
  pages={143--148},
  year={2020},
  organization={Trans Tech Publ}
}

@inproceedings{wongnaree2020recovery,
  title={Recovery of silver from solar panel waste: an experimental study},
  author={Wongnaree, Natcha and Kritsarikun, Woranittha and Ma-ud, Natthicha and Kansomket, Chatisa and Udomphol, Tapany and Khumkoa, Sakhob},
  booktitle={Materials Science Forum},
  volume={1009},
  pages={137--142},
  year={2020},
  organization={Trans Tech Publ}
}

@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}
}