Carnevali, Doris L., author
J.B. Lippincott, 1983
Buku Teks
edited by Cindy Smith Greenberg
Williams & Wilkins, 1988
Buku Teks
Grant, James P., author
Overseas Development Council , 1978
Buku Teks
Smith, Sandra F. (Sandra Fucci), author
Prentice Hall Health , 2000
Buku Teks
Joos, Irene, author
Reston publishing , 1985
Buku Teks