Pearson Education, 2002
Buku Teks SO
Martin, Titman Keown
Essex Pearson, , 2014
Buku Teks SO
Van Horne, James Carter, 1935-
Prentice Hall International, 1995
Buku Teks SO
Bradley, Joseph F.
Dryden Press, 1974
Buku Teks
Bradley, Joseph F.
Holt, Rinehart and Winston, 1969
Buku Teks