An, M., A Proposal for Unified Keyboard by An-type, Korean Language Information Science, 2. 2000.
ISO/IEC 9995-1, Information technology - Keyboard layouts for text and office systems - Part 1: General principles governing keyboard layouts, IEC/IEC, 2009.
ITU-T E.161, ITU-T Recommendation E.161, Arrangement of digits, letters and symbols on telephones and other devices that can be used for gaining access to a telephone network, SERIES E: OVERALL NETWORK OPERATION, TELEPHONE SERVICE, SERVICE OPERATION AND HUMAN FACTORS, International Telecommunication Union, 2, 2001.
Jeong, B.Y. and Lee, D.G., Modern Ergonomics, Minyongsa, Korea, 135. 2009.
Kim, K., Three Modes of Three Sets Type Korean Keyboards and Unified Designs for North and South Koreas, Journal of the Korean Society for Quality Management, 37(4), 52-60, 2009.
Kim, K. and Jeong, B.Y., Classification of Korean Characters and Frequency of Continual Characters, Journal of the Ergonomics Society of Korea, 21(2), 1-11, 2002.
Kim, K. and Yoo, Y.K, A New Computer Keyboard Design for Korean Alphabets with Frequency and Standard Considerations, Journal of the Ergonomics Society of Korea, 27(3), 7-14, 2008.
KS X 5002, Keyboard layout for information processing, Korea Industrial Standard, 2007.
KS X 5003, Keyboard for personal computer, Korea Industrial Standard, 2011.
NIKL, The National Institute of the Korean Language, The Study for the Arrangement of Korean Characters in Computer Keyboards, 2007.
Patal, Kong sebulsik keyboards, http://pat.im/1010, 2014.07.03
TheScience, "Korean Keyboard, how can reduce typing errors?", Dong-A Science, Korea, 2011.10.07.