McKnight, Brian E., author
University of Chicago Press, 1971
Buku Teks
Barnett, A. Doak (Arthur Doak), author
Columbia University Press, 1967
Buku Teks
Gong, Wei Ai
International Association of Historian of Asia, 1974
Buku Teks
Hilit Pub. Co. ; New York, N.Y. : Highlight International New Yor, 1987
Buku Referensi
Smith, Arthur H., author
Fleming H. Revell, 1899
Buku Teks