edited by Ralph Cohen
Johns Hopkins University Press, 1974
Buku Teks
Crane, R.S.
University of Chicago Press, 1971
Buku Teks
edited by Ralph Cohen
Sheridan Press, 1989
Buku Referensi
Ryan, Michael, 1951-
Wiley-Blackwell, 2017
Buku Teks
edited by Julie Rivkin and Michael Ryan
John Wiley & Sons, 2017
Buku Teks