Mitchell, Anne M.
Neal-Schuman, 2005
Buku Teks
Patrick, Gay D.
Neal-Schuman, 1992
Buku Referensi
Turock, Betty J.
Neal-Schuman Publishers, 1992
Buku Teks
Curzon, Susan Carol
Facet Publishing, 2006
Buku Teks
Mitchell, Anne M.
Neal-Schuman Publishers, 2005
Buku Referensi