Hewlett, Awdrey
Rigby Publishers, 1983
Buku Teks
White, Robert L., author
Twayne, 1966
Buku Teks
edited by Allen Tate
Prentice-Hall, 1947
Buku Teks
Bishop, John Lyman
A study of the San-Yen collections, , 1956
Buku Teks
Oxford University Press, 1993
Buku Teks