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29. The Poultry Site. “ព័ត៌មានថ្មីៗអំពីផ្តាសាយបក្សី”។ ចូលអានថ្ងៃទី ២៣ ខែ ឧសភា ឆ្នាំ ២០១៥។ http://www.thepoultrysite.com/bird-flu/bird-flu-news.php?country=kh