1. (1993). Glossary of Terms Relating to Powders (Standard No. BS 2955:1993; British Standards 2955).
2. (2003). McGraw Hill’s Dictionary of Scientific and Technical Terms, McGraw-Hill. [6th ed.].
3. Beddow, J.K., and Meloy, T.P. (1980). Testing and Characterization of Powders and Fine Particles, Heyden and Son. Chapter 1.
4. Rhodes, M. (2008). Introduction to Particle Technology, John Wiley & Sons Ltd.. [2nd ed.].
5. Xu, R. (2000). Particle Characterization: Light Scattering Methods, Kluwer Academic publishers.