Ihlwan, Moon (27 February 2008). "The Seoul of World Design". Bloomberg Businessweek. Archived from the original on August 14, 2012. Retrieved 12 March 2014.
Ihlwan, Moon (27 February 2008). "The Seoul of World Design". Bloomberg Businessweek. Archived from the original on August 14, 2012. Retrieved 12 March 2014.