Bodnar, George H., author
Prentice-Hall, 1998
Buku Referensi
Bodnar, George H., author
Prentice-Hall International, 1998
Buku Teks
Leitch, Robert A., author
Prentice-Hall, 1983
Buku Teks
Page, John R., 1949-, author
Prentice-Hall International, 1992
Buku Teks
Romney, Marshall B., author
Pearson Education, 2018
Buku Teks