Chao jie xi jie gou jin chang guang die zhuan li di tu ji fen xi =Daren Chen · First published 2005Open the Tome
Jin dai Guangdong sheng qiao hui yan jiu (1862-1949): Yi Guang, Chao, Mei, Qiong di qu wei li (Nanyang xue hui cong shu)Chenghua Xia · First published 1992Open the Tome