Coba jelasin Lihat pula dari Fluks listrik dong

Purcell, Edward, Morin, David; Electricity and Magnetism, 3rd Edition; Cambridge University Press, New York. 2013 .

Griffith, David J.; Introduction to Electrodynamics, 3rd Edition; Prentice Hall, Upper Saddle River, New Jersey; 1999.

Browne, Michael, PhD; Physics for Engineering and Science, 2nd Edition; McGraw Hill/Schaum, New York; 2010.