Furlong, Nancy E., author
Harcourt College Publishers, 2000
Buku Teks
Munro, Barbara Hazard, author
Lippincott, 1986
Buku Teks
Munro, Barbara Hazard, author
Lippincott , 1997
Buku Teks
Polit, Denise F., author
Lippincott , 1997
Buku Teks
edited by David M. Fetterman
Jossey Bass, 1991
Buku Teks