Poolkhet, Chaithep, Pornsri Chairatanayuth, Sukanya Thongratsakul, Weerapong Thanapongthum, and Theera Rakkwamsuk. 2012. “Spatial Analysis and Mapping of Highly Pathogenic Avian Infl Uenza in Thailand Using National Outbreak Data: An Area-Based Risk Orientation”. Agriculture and Natural Resources 46 (5). Bangkok, Thailand:715-23. https://li01.tci-thaijo.org/index.php/anres/article/view/242979.