compiled by Robert Lee Wolff
Garland Publishing, 1984
Buku Referensi
Liberal Arts Press,, 1959
Buku Teks
Coates, Benjamin Allen, author
Oxford University Press, 2016
eBooks
Marshall, Alan, 1902-1984, author
Chesire, 1963
Buku Teks
Hirota, Hidetaka, author
Oxford University Press, 2017
eBooks