This work is now in the public domain in Cambodia because the following condition is met:
It is ineligible for copyright in Cambodia, because it is one of: "Constitution, Law, Royal Decree, Sub-Decree,... other Regulation,... Proclamation (Prakas), decision, certificate, other instructed circulars issued by state organizations." (Art. 10)
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This image, originally posted to Flickr, was reviewed on 18 February 2010 by the administrator or reviewerZooFari, who confirmed that it was available on Flickr under the stated license on that date.