Mitchell, Anne M., author
Neal-Schuman, 2005
Buku Teks
Mitchell, Anne M., author
Neal-Schuman Publishers, 2005
Buku Referensi
Stielow, Frederick, author
Neal-Schuman, 2003
Buku Teks
Curzon, Susan Carol, author
Facet Publishing, 2006
Buku Teks
Turock, Betty J., author
Neal-Schuman Publishers, 1992
Buku Teks