Kennedy, Raymond
Yale University Press, 1945
Buku Referensi
Routledge, 2018
Buku Teks
Peters-Golden, Holly, author
McGraw-Hill, 2012
Buku Teks
Podolefsky, Aaron, 1946-2013, author
Mayfield , 2001
Buku Teks
Campbell, Elizabeth, author
Wiley Balckwell, 2015
Buku Teks