Martin, Titman Keown
Essex Pearson, , 2014
Buku Teks SO
Prentice-Hall, 1979
Buku Teks SO
Arthur J Keown
Pearson : Prentice Hall, [2005;2005, 2005]
Buku Teks SO
Bradley, Joseph F.
Dryden Press, 1974
Buku Teks
Bradley, Joseph F.
Holt, Rinehart and Winston, 1969
Buku Teks