Khanitchaidecha, Wilawan, Pichapong Pitakwinai, Khakhanang Ratananikom, and Auppatham Nakaruk. “Statistical Analysis of Water Quality Parameters in Downstream of Nan River, Thailand”. Naresuan University Engineering Journal 14, no. 2 (December 23, 2019): 14–23. Accessed May 6, 2024. https://ph01.tci-thaijo.org/index.php/nuej/article/view/187065.