Phares Odaffer, Randall Charles, Thomas Cooney, John Dossey, Jane Schielack
Pearson/Addison-Wesley, 2008
Buku Teks SO
Garstens, Helen L.
Macmillan, 1969
Buku Teks SO
Beckmann, Sybilla
Pearson/Addison-Wesley, 2008
Buku Teks SO
Solomon, R.C.
London DP Publications 1993,
Buku Teks
Bennett, Albert B.
McGraw-Hill, 2001
Buku Teks SO