Leavitt, Maribelle Bryde, author
Maribella Bryde Leavitt 1, 1982
Buku Teks
Friedman, Marilyn M., author
Prentice-Hall, 2003
Buku Teks
Logan, Barbara Bryan, author
Addison-Wesley, 1986
Buku Teks
Fawcett, Christine S.
Mosby , 1993
Buku Teks
Bailon, Salvacion G., author
S.G Bailon and A.S Maglaya, 1978
Buku Teks