ชื่นชุ่ม ภ. (2020) “Gross Domestic Product and Economic Value of Water Resources of River Basins in Thailand”, Srinakharinwirot University Engineering Journal. Bangkok, Thailand, 15(3), pp. 75–88. Available at: https://ph02.tci-thaijo.org/index.php/sej/article/view/135934 (Accessed: 16 January 2025).