Jian Chu และ Shuwang Yan and Wei Guo. (2016) Vacuum preloading methods: an update. <i>The Geotechnical Engineering Journal of the SEAGS & AGSSEA</i>, <i>47</i>(3), pp 62-69.Jian Chu และ Shuwang Yan and Wei Guo. "Vacuum preloading methods: an update". The Geotechnical Engineering Journal of the SEAGS & AGSSEA 47 (2016):pp 62-69.Jian Chu และ Shuwang Yan and Wei Guo. Vacuum preloading methods: an update. Southeast Asian Geotechnical Society:ม.ป.ท. 2016.