Quy Giang, Pham, Kanchana Nakhapakorn, and Achara Ussawarujikulchai. “Effectiveness of Different Spatial Interpolators in Estimating Heavy Metal Contamination in Shallow Groundwater: A Case Study of Arsenic Contamination in Hanoi, Vietnam”. Environment and Natural Resources Journal 9, no. 1 (April 7, 2017): 31–37. Accessed May 7, 2024. https://ph02.tci-thaijo.org/index.php/ennrj/article/view/82460.