Thanh Giao, N. (2020) “Spatial Variations of Surface Water Quality in Hau Giang Province, Vietnam Using Multivariate Statistical Techniques: DOI: 10.32526/ennrj.18.4.2020.38”, Environment and Natural Resources Journal, 18(4), pp. 400-410. vailable at: https://ph02.tci-thaijo.org/index.php/ennrj/article/view/240801 (ccessed: 6December2021).