Fulda, Carl H., author
Foundation Press, 1970
Buku Teks
Ebb, Lawrence F.
West Publishing Company, 1964
Buku Teks
Ebb, Lawrence F., author
West Publishing, 1964
Buku Teks
Schefer, Krista Nadakavukaren, author
Edward Elgar Publishing, 2016
Buku Teks
Handler, Milton
The Foundation Press, 1967
Buku Teks