1. American Public Health Association (1998). Metals by flame atomic absorption spectrometry. In L. S. Clesceri, A. E. Greenberg, & A. D. Eaton (Eds.), Standard methods for the examination of water and wastewater (20th ed., pp. 3–1303–22). Washington, DC: American Public Health Association.
2. Bernard, P., Antoine, L., & Bernard, L. (2004). Principal component analysis: An appropriate tool for water quality evaluation and management—application to a tropical lake system. Ecological Modelling, 178, 295–311.
3. Cai, Q. M., Gao, X. Y., Chen, Y. W., Ma, S. W., & Dokulil, M. (1997). Dynamic variations of water quality in Taihu Lake and multivariate analysis of its influential factors. Journal of Chinese Geography, 7, 72–82.
4. Cao, C., Zhu, J. G., Zhu, J. Y., Cao, X., Dou, Y. J., & Hosen, Y. (2004). Nitrogen export from an agriculture watershed in the Taihu Lake area. Environmental Geochemistry and Health, China, 26, 199–207.
5. Cao, X. H., & Zhou, E. (2006). Influence of water diversion of Wangyu River on water environment of west Changshu City. Water Resource Protection, China, 22, 48–50.