@techreport{the2016construction,
  title = {CONSTRUCTION PRODUCTIVITY IN SINGAPORE: EFFECTIVE MEASUREMENT TO FACILITATE IMPROVEMENT}
  author = {The Singapore Contractors Association Ltd
Singapore Chinese Chamber of Commerce and Industry},
  url = {https://www.scal.com.sg/resources/ck/files/SCAL%20Circular/Construction%20Productivity%20in%20Singapore_small.pdf},
  year = {2016}
}