1. 1）M. Kaya ; Electronic waste and printed circuit board recycling technologies（Springer International Publishing, 2019）.
2. 2）C. P. Baldé, E. D'Angelo, V. Luda, O. Deubzer, R. Kuehr ; Global Transboundary E-waste Flows Monitor - 2022（United Nations Institute for Training and Research（UNITAR）, Bonn, Germany, 2022）. https://ewastemonitor.info/gem-2020/
3. 3）K. Parajuly, R. Kuehr, A. K. Awasthi, C. Fitzpatrick, J. Lepawsky, E. Smith, R. Widmer, X. Zeng ; Future E-waste Scenarios（StEP（Bonn）, UNU ViE-SCYCLE（Bonn）& UNEP IETC（Osaka）, 2019）. http://collections.unu.edu/eserv/UNU:7440/FUTURE_E-WASTE_SCENARIOS_UNU_190829_low_screen.pdf
4. 4）H. Li, J. Eksteen, E. Oraby ; Resources, Conservation and Recycling, 139, 122（2018）. https://doi.org/10.1016/j.resconrec.2018.08.007
5. 5）J. Guo, J. Guo, Z. Xu ; Journal of Hazardous Materials, 168,（2-3）, 567（2009）. https://doi.org/10.1016/j.jhazmat.2009.02.104