Abdullah Fuad A.
Prentice Hall International, 1987
Buku Teks
Shapiro, Alan C.
Allyn and Bacon , 1991
Buku Teks
Stephen A.Ross
Mc Graw Hill, 2009
Buku Teks
by Arthur J. Keown, John D. Martin, J. William Petty, David F. Scott
Prentice-Hall, 2001
Buku Teks
Prentice Hall International, 1991
Buku Teks