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WikiPedia: Các_hình_khắc_trên_đá_ở_Tanum http://doi.org/10.1111/j.0065-001X.2003.aar740105.... http://whc.unesco.org/en/list/557 http://whc.unesco.org/en/list/557rev //tools.wmflabs.org/geohack/geohack.php?language=v... http://www.rockartscandinavia.se/uk/start.html https://books.google.com/books?isbn=1782978828 https://commons.wikimedia.org/wiki/Tanumshede?usel... https://books.google.co.uk/books?id=IZ_KBwAAQBAJ&d... https://books.google.co.uk/books?id=_MKi5nMmCy0C&d...