1. Beijing tushuguan guji zhenben congkan 北京图书馆古籍珍本丛刊. Beijing: Shumu wenxian chubanshe, 2000.
2. Da Ming yitong guanzhi zengbu yutu bianlan 大明一統官制增補輿圖便覽, ca. 1605. Neige wenku cang Mingdai xishu 內閣文庫藏明代稀書. Consulted at Cambridge University Library, Microfilm.A.2357.
3. Da Ming yitong jilu 大明一統輯錄, ca. 1576. Obtained online via https://iiif.lib.harvard.edu/manifests/view/drs:23424008$13i (accessed 15 July 2021).
4. Da Ming yitong wenwu zhusi yamen guanzhi 大明一統文武諸司衙門官制, ca. 1541. Obtained online via http://rbook.ncl.edu.tw/NCLSearch/Search/SearchDetail?item=6566efe9308f4436943c956ea2a43ecbfDg2NTcyMg2&image=1&page=&whereString=&sourceWhereString=&SourceID= (accessed 15 July 2021).
5. Da Ming yitong zhi 大明一統志, 1461. Obtained online via http://shanben.ioc.u-tokyo.ac.jp/main_p.php?nu = B2443000&order = rn_no&no=00378 (accessed 15 July 2021).