The joint communique between Cambodia and Thailand dated 18 June 2008 regarding the inscription of the temple of Preah Vihear on a UNESCO list. The Thai Constitutional Court later ruled that the communique did not bind Thailand because it, considered by the court to be a treaty concerning territorial integrity of the country, needed to be confirmed by the Thai parliament prior to being signed by the Thai government.
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<a href="https://en.wikipedia.org/wiki/Government_of_Cambodia" class="extiw" title="w:Government of Cambodia">Government of Cambodia</a></div>
Council of Ministers, Government of Cambodia. (2008). <i>Joint communique between Cambodia and Thailand dated 18 June 2008</i>. Retrieved from <a rel="nofollow" class="external text" href="https://pressocm.gov.kh/wp-content/uploads/2017/07/PRU-PUB_18082009_ENG.pdf">link</a>