1. 3D Printing of Optical Components
2. Wohlers Report 2017: 3D printing and additive manufacturing state of the industry, annual worldwide progress report: Chapters titles: The Middle East, and other countries;Kianian,2017
3. U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, 2020 LED Manufacturing Supply Chain, March 2021. https://www.energy.gov/sites/default/files/2021-05/ssl-2020-led-mfg-supply-chain-mar21.pdf
4. Opportunities and challenges for 3D printing of solid-state lighting systems