1. Water Audits and Loss Control Programs. AWWA Manual M36;American Water Works Association,2009
2. Discharge Standard of Water Pollutants for Municipal Wastewater Treatment Plants DB11/890—2012;Beijing Municipal Environmental Protection Bureau and Beijing Municipal Administration of Quality and Technology Supervision,2012
3. Beijing Water Statistical Yearbook;Beijing Water Authority,2017
4. China Electric Power Yearbook;China Electric Power Press,2012