Beijing Shiyou Daxue Chabanshe 2000
Buku Referensi
Koo, Vi Kyuin Wellington
New York: Columbia University : Longmans : Green, 1912
Buku Teks
Taylor, George E.
New York Institute of Pasific Relations 1940
Buku Teks
Khan, M. Rafiq, author
National Academy, 1963
Buku Teks
Hongkong Kingsway International Publications 1981
Buku Referensi