Billstein, Rick, author
Pearson Addison Wesley, 2007
Buku Teks SO
Garstens, Helen L., author
Macmillan, 1969
Buku Teks SO
Phares Odaffer, Randall Charles, Thomas Cooney, John Dossey, Jane Schielack
Pearson Addison Wesley, 2008
Buku Teks SO
Bennett, Albert B., author
McGraw-Hill , 2001
Buku Teks SO
Musser, Gary L., author
John Wiley & Sons, 2006
Buku Teks SO