Gillies, Dee Ann, author
W.B. Saunders, 1994
Buku Teks
edited by Joanne E. Hall, Barbara R. Weaver
J.B. Lippincott , 1977
Buku Teks
Atkinson, Leslie D., author
Macmillan, 1985
Buku Teks
edited by Harriet H. Werley
Springer, 1976
Buku Teks
Scott, Richard A., 1935-, author
Reston Publishing, 1982
Buku Teks