Pham Quy Giang และผู้แต่งคนอื่นๆ. (2011) Effectiveness of different spatial interpolators in estimating heavy metal contamination in shallow groundwater. A case study of arsenic contamination in Hanoi, Vietnam. <i>Environment and Natural Resources Journal</i>, <i>9</i>(1), 31.Pham Quy Giang และผู้แต่งคนอื่นๆ. "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 (2011):31.Pham Quy Giang และผู้แต่งคนอื่นๆ. Effectiveness of different spatial interpolators in estimating heavy metal contamination in shallow groundwater. A case study of arsenic contamination in Hanoi, Vietnam. คณะสิ่งแวดล้อมและทรัพยากรศาสตร์:ม.ป.ท. 2011.