Leininger, Madeleine M., author
John Wiley & Sons, 1978
Buku Teks
Hill, John W., author
Prentice-Hall, 1975
Buku Teks
Edey, Harold C.
Garland Publishing , 1982
Buku Teks
edited by James F. Short
Sage, 1986
Buku Teks
Arif Gosita, author
Akademika Pressindo, 1987
Buku Teks