edited by William A. Dunson
University Park Press, 1975
Buku Teks
Geus, Armin
T.F.H. Publisher, 1995
Buku Teks
Gage, John D., author
Cambridge University Press, 1992
Buku Teks
Tanaka, Yoshifumi, author
Cambridge University Press, 2012
Buku Teks
Devaux, Bernard
Barron's Educational Series, 2000
Buku Referensi