David Ng C. C. and Simon Low Y. H. (2016) Singapore Case Histories on Omission of Strut by Observation Approach For Circle Line and Down Town Line Projects. <i>The Geotechnical Engineering Journal of the SEAGS & AGSSEA</i>, <i>47</i>(3), pp 51-61.David Ng C. C. and Simon Low Y. H. "Singapore Case Histories on Omission of Strut by Observation Approach For Circle Line and Down Town Line Projects". The Geotechnical Engineering Journal of the SEAGS & AGSSEA 47 (2016):pp 51-61.David Ng C. C. and Simon Low Y. H. Singapore Case Histories on Omission of Strut by Observation Approach For Circle Line and Down Town Line Projects. Southeast Asian Geotechnical Society:ม.ป.ท. 2016.