Sorauf, Frank J.
Little, Brown & Co., 1988
Buku Teks
Burns, James McGregor, author
Prentice-Hall, 1963
Buku Teks
Einstein, David
Berkeley, Calif.: McGraw-Hill, 1996,
Buku Referensi
Reza Hesti, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2003
UI - Skripsi (Membership)
Tindall, George Brown, author
Norton, 1999
Buku Teks