Birch, David, 1950-
Macmillan, 1991
Buku Teks
edited by Ralph Cohen
Sheridan Press, 1989
Buku Referensi
Ryan, Michael, 1951-, author
Wiley-Blackwell, 2017
Buku Teks
edited by Julie Rivkin and Michael Ryan
John Wiley & Sons, 2017
Buku Teks
Krieger, Murray
The Johns Hopkins University Press, 1976
Buku Teks