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ปิ่นทอง อ, ขวัญยืน บ. Drought Monitoring by Composite Drought Index. J Appl Res Sci Tech [internet]. 2016 Dec. 31 [cited 2026 Sep. 22];15(2):45-53. available from: https://ph01.tci-thaijo.org/index.php/rmutt-journal/article/view/117770