Hargreaves, Martin
Longman, 1996
Buku Teks
Beam, Walter R.
McGraw-Hill , 1990
Buku Teks
edited by John P.T. Mo, Cees Bil and Arvind Sinha
Woodhead, 2015
eBooks
Stevens, Roger T.
John Wiley & Sons, 1979
Buku Teks
Nise, Norman S.
John Wiley & Son, 2004
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