Nontapon, J., Kummuang, P., Srihanu, N., Bhomi, A.K., Shrestha, R., Poudyal, R., Bhurtyal, U., Pant, P. and kaewplang, siwa 2025. Monitoring Water Turbidity in the Chiang Rai Reach of the Mekong River Using Sentinel-2 NDTI. RMUTL Engineering Journal. 10, 2 (Dec. 2025), 60–68. DOI:https://doi.org/10.14456/rmutlengj.2025.14.