Stright, Barbara R.
J.B. Lippincott, 1996
Buku Teks
Addison-Wesley , 1988
Buku Teks
Sally B. Olds, Marcia L. London, Patricia A. Wieland Ladewig, Michele R. Davidson
Pearson Education, 2004
Buku Referensi
Reeder, Sharon J.
J.B. Lippincott, 1997
Buku Teks
Reeder, Sharon J.
J.B. Lippincott, 1997
Buku Teks