Bellman, Richard, author
Addison-Wesley, 1968
Buku Teks
Wilcox, L. R. (Lee Roy), 1912-, author
International Textbook, 1962
Buku Teks
Boyce, William E., author
John Wiley & Sons, 1992
Buku Teks SO
Boyce, William E., author
John Wiley & Sons, 1977
Buku Teks SO
Trench, William F., author
Grove Brooks/Cole, 2000
Buku Teks SO