@book{centre2012water, title = {Water: From Scarce Resource to National Asset Singaporeā€˜s Urban Systems Studies Booklet Series} author = {Centre for Liveable Cities Ministry of National Development, Singapore Public Utilities Board Ministry of the Environment and Water Resources, Singapore}, url = {https://www.clc.gov.sg/docs/default-source/urban-systems-studies/uss-water.pdf}, year = {2012} }