OECD (2021), "66 Umbrellas, sun umbrellas, walking-sticks, seat-sticks, whips, riding-crops and parts thereof: Australia: Harmonised System 2012", in International Trade by Commodity Statistics Volume 2020 Issue 4: Australia, Colombia, Czech Republic, France, Hungary, Luxembourg, Slovak Republic, OECD Publishing, Paris, https://doi.org/10.1787/b1a61ebc-en.