Zastrow, Charles, author
Nelson-Hall, 1993
Buku Teks
Zastrow, Charles, author
Nelson-Hall Publishers, 1989
Buku Teks
Zastrow, Charles, author
Cengage Learning, 2016
Buku Teks
Kirst-Ashman, Karen Kay, author
Nelseon-Hall Publishers , 1999
Buku Teks
Ashford, Jose B., author
Wadsworth, 2001
Buku Teks