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Law, Kock-Yee; Zhao, Hong . (2016). Surface Wetting || Contact Angle Measurements and Surface Characterization Techniques. , 10.1007/978-3-319-25214-8(Chapter 2), 7–34. doi:10.1007/978-3-319-25214-8_2 
10.1007/978-3-319-25214-8_2