Miles, Matthew B., author
Teachers College Press, 1973
Buku Teks
Thibaut, John W., author
John Wiley and Sons, 1967
Buku Teks
Konopka, Gisela, author
Prentice-Hall, 1963
Buku Teks
Trecker, Harleigh B., author
Association Press, 1967
Buku Teks
Zastrow, Charles, author
Thomson Brooks/Cole, 2006
Buku Teks