Peter S. Davis, editor; Mary Powell, foreword
Churchill Livingstone , 2000
Buku Teks
Beyers, Marjorie, author
Litle Brown , 1979
Buku Teks
Mosby Elsevier, 2010
Buku Teks
edited by Elizabeth Mason-Whitehead [and others]
Sage , 2008
Buku Teks
Greta Thornbory and Susanna Everton, editors
Routledge, 2018
Buku Teks