OECD (2021), "67 Prepared feathers and down and articles thereof; artificial flowers; articles of human hair: Korea: Harmonised System 2012", in International Trade by Commodity Statistics Volume 2020 Issue 6: Austria, Korea, Slovenia, Spain, Turkey, OECD Total, EU28-Extra, OECD Publishing, Paris, https://doi.org/10.1787/4364c7b8-en.