Youngkin, Ellis Quinn, author
Appleton & Lange , 1998
Buku Teks
edited by Dawn P. Lemcke [and others]
Appleton & Lange, 1995
Buku Teks
edited by Phyllis C. Leppert
J.B. Lippincott, 1997
Buku Teks
Saltman, Deborah, author
Harcourt Brace Jovanovich, 1991
Buku Teks
Carcio, Helen A., author
Lippincott , 1999
Buku Teks