Smith, Joan Macfarlance
Routledge & K. Paul, 1972
Buku Teks
edited by John F. Burton ... [and others]
Holt, Rinehart and Winston, 1971
Buku Teks
Blake, David Haven, author
McGraw-Hill Book Co. , 1990
Buku Teks
McDonald, Michael, 1945-
John Wiley, 2002
Buku Teks
Myers, Jerome L., author
Routledge, 2010
Buku Teks