The following sources were consulted in the preparation of the article “14 souvenirs you can’t legally take out of some countries.”
- What is hidden in the luggage? First assessments of illegal seashells gathering in Sardinia (Italy)
- Philippines: Giant clam shells worth $25m seized in raid
- Customs Export Prohibition (Pounamu) Order 2021
- U.S. Customs and Border Protection (CBP) FAQs Thailand
- Act on the Icelandic Institute of Natural History and Natural History Museum Centres No. 60 of 1 June 1992
- Practical Operation of the 1995 Unidroit Convention
- About the Ministry of Antiquities
- Non-Detriment Finding for Cites-Listed Corals in Indonesia
- Protection for Movable Cultural Heritage Act 1986
- Svalbard Environmental Protection Act