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2. Dielectric Materials and Applications, ed. by A. von Hippel (Artech House, Boston, London, 1995)
3. Dipole Moments, LibreTexts, https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Supplemental_Modules_(Physical_and_Theoretical_Chemistry)/Physical_Properties_of_Matter/Atomic_and_Molecular_Properties/Dipole_Moments (accessed on August 4, 2022)
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5. D. J. Griffiths, Introduction to electrodynamics. 3rd edn. (Prentice Hall, Upper Saddle River, NJ, USA, 1999) pp. 175 -179