edited by Robert W. Roberts, Robert H. Nee
University of Chicago Press, 1970
Buku Teks
edited by Jan Fook
Allen & Unwin, 1996
Buku Teks
Hamilton, Gordon, author
Uitgeverij Ploegsma, 1952
Buku Teks
Healy, Karen, author
Palgrave Macmillan, 2005
Buku Teks
Miley, Karla Krogsrud, 1942-, author
Pearson, 2014
Buku Teks