1. Korea Investors Service, Inc., KIS Industry Outlook, 2015, p.3.
2. Kiwoom Securities Co., Ltd., Annual Report, 2015, p.3-4.
3. Market share for the second quarter of nand flash. IHS Technology. 2015.
4. Ministry of Science, ICT and Future Planning, Annual Report on Survey on Actual State of SMEs, 2015, p.5.