Stafford, Fiona, author
Wiley Blackwell, 2012
Buku Teks
edited by George R. Creeger and Joseph W. Reed, Jr.
Holt, Rinehart and Winston, 1964
Buku Teks
Spacks, Patricia Meyer, author
Wiley-Blackwell, 2009
Buku Teks
Cheney, Patrick, author
Wiley, 2011
Buku Teks
Taylor, Andrew, author
University of Queensland Press, 1989
Buku Teks