Child, Marquis W.
Yale University Press , 1936
Buku Teks
Guenther, Herbert V., author
Shambhala, 1976
Buku Teks
Way, Lawrence W.
California Lange Medical Publ., 1983
Buku Teks
Russ, Sandra W, author
Lawrence Erlbaum Assossiate, 2004
Buku Teks
Maier, Henry W
Harper and Row, 1978
Buku Teks