Fook, Janis
Allen & Unwin, 1993
Buku Teks
Hollis, Florence, author
Random House, 1968
Buku Teks
edited by Robert W. Roberts, Robert H. Nee
University of Chicago Press, 1970
Buku Teks
edited by Howard L. Parad and Roger R. Miller
Family Service Association of America, 1968
Buku Teks
Fischer, Joel, author
McGraw-Hill, 1978
Buku Teks