Houston, Gaie, author
Sage, 2003
Buku Teks
O`Brien, Jane Clifford
Elsevier, 2012
Buku Teks
O`Brien, Jane Clifford, author
Elsevier/Mosby, 2012
Buku Teks
Edited by Amnita Atwal, Anne Mclntyre
Wiley-Blackwell, 2013
Buku Teks
edited by Diane Elizabeth Waller and Andrea Gilroy
Open University Press, 1992
Buku Referensi