Thomas, David A.
Allyn and Bacon, 1991
Buku Teks SO
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
Wang, Jianpan
Gale Asia Cengage Learning, 2013
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