OECD (2021), "56 Wadding, felt and nonwovens; special yarns; twine, cordage, ropes, cables etc.: 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/b5bf7c33-en.