Howard, Joseph H.
University of Malaya Library, 1966
Buku Referensi
Tokyo: University of Tokyo Press, 1974
Buku Teks
Bristol Gemini Graphic and Print , 1981
Buku Teks SO
Fairbank, John K. [John King], editor
Harvard-Yenching Institute , 1952
Buku Klasik
Morgan Kaufmann, 1998
Buku Referensi