Kothari, Rajni, author
Little, Brown, 1970
Buku Teks
University of Toronto Press, 2014
Buku Teks
Rose, Richard, 1933-, author
Scott, Foreman, 1989
Buku Teks
Christian Soe
McGraw-Hill, 2004
Buku Teks
edited by Yunshik Chang, Hyun-ho Seok and Donald Baker
Routledge, 2011
Buku Teks