Nugent William R., author
Thomson Learning, 2001
Buku Teks
Garrison, D. R. (D. Randy), 1945-, author
Routledge, 2017
Buku Teks
Ward, Ralph D.
John Wiley & Sons, 1997
Buku Teks
Yablonsky, Lewis, author
Wadsworth, 2000
Buku Teks
Che, Yuming, author
Foreign Language Press, 2008
Buku Teks