References
^ David Halliday, Jearl WalkerFundamentals of Physics, (Chapters 1 - 21) Volume 1 by David Halliday and Jearl Walker (2004, Hardcover, Revised) ISBN 9780471429593 (revised Oct 2017)^ Jearl Walker (Cleveland State Univ.) (2014). Fundamentals of Physics, 7th Edition, Volume 1, (Chapters 1 - 21), 7th Edition, Wiley. BiggerBooks. ISBN 9780471429593 (revised May 2022)^ (2013). Fundamentals of Physics, 7th Edition, Volume 1, (Chapters 1 - 21), 7th Edition ECampus. ISBN 9780471429593 (revised Oct 2017)
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