1. Moody, L. F. Friction factors for pipe flow. Trans. ASME. 66, 671–684 (1944).
2. Yang, B. H. & Joseph, D. D. Virtual Nikuradse. J. Turbulence. 10(11), 1–28 (2009).
3. White, F. M. Fluid Mechanics 7th edn. (Mcgraw-Hill, 2011).
4. Munson, B. R., Young, D. F. & Okiishi, T. H. Fundamentals of Fluid Mechanics (Wiley, 2002).
5. Janna, W. S. Introduction to Fluid Mechanics 4th edn. (CRC Press, 2010).