edited by Charles E. Schaefer and Kevin J. O'Connor
John Wiley & Sons, 1982
Buku Referensi
McMahon, Linnet, author
Routledge, 1992
Buku Referensi
Carmichael, Karla D., author
Pearson - Prentice Hall, 2006
Buku Teks
Cattanach, Ann
Jessica Kingsley , 1992
Buku Teks
edited by David A. Crenshaw and Anne L. Stewart ; foreword by Stuart Brown.
The Guilford Press, 2015
Buku Teks