Ishido, Ellchiro
University of Tokyo press, 1974
Buku Teks
Dore, Ronald
George Allen and Unwin, 1973
Buku Teks
Wolters, Oliver William
Cornell University Press, 1967
Buku Teks
Suenobu, Mineo
Kobe University of Commerce, 1999
Buku Teks
Hacker, Andrew
McGraw-Hill, 1973
Buku Teks