Galitz, Lawrence
Pitman, 1994
Buku Teks
Shapiro, Alan C.
Allyn and Bacon , 1991
Buku Teks
Van Horne, James C. (James Carter), 1935-, author
Prentice-Hall, 1971
Buku Teks
Van Horne, James C. (James Carter), 1935-, author
Prentice-Hall, 1980
Buku Teks
Shapiro, Alan C.
Buku Teks