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Chi-hun Kim, "LED Light, To be the light of future", LGERI Report, pp. 2-19, 3. Jun. 2009.
Gi-hoon Kim, Sung-joong Kim, Yu-sin Kim, Kyung-ho Shin, Hyun-sik Kim, Sang-bin Song, Min-ki Kwon, "A Study of Optical design of LED Bulb for Upper Hemispherical intensity distribution from LED PKG on Flat PCB" The Korean Institute of Illuminating and Electrical Installation Engineers, pp. 157-158, May. 2013.
"Program Requirements for Integral LED Lamps Eligibility Criteria - Version 1.4", United States Environmental Protection Agency, 2012.
In-tae Kim, An-seop Choi, "Analysis on the Range of White Light according to MacAdam Ellipses Steps", The Korean Institute of Illuminating and Electrical Installation Engineers, pp. 108-109, 19. Oct. 2012.
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Bum-sik Seo, Ki-joung Lee, Young-seek Cho, dea-Hee Park, "A Study on Improving the Efficiency of a Heat Dissipation Design for 30W COB LED Light Source" Journal of KIEEME, pp. 158-163, Feb. 2013.
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Gyeung-ju Park, "Optical Design and Characterization of LCD Backlight Unit with RGB LEDs" Yeungnam Unicersity, Graduate School, Department of Physics, June. 2012.