明代的古地图 (Ming Cartography), Cartography, GEOG1150, 2013, Qiming Zhou et. al., (Department of Geography, Hong Kong Baptist University), Hong Kong Baptist University, Kowloon, Hong Kong, China, retrieved 27 Jan 2013; "Cartography". Archived from the original on 2007-09-07. Retrieved 2008-03-16..
明代的古地图 (Ming Cartography), Cartography, GEOG1150, 2013, Qiming Zhou et. al., (Department of Geography, Hong Kong Baptist University), Hong Kong Baptist University, Kowloon, Hong Kong, China, retrieved 27 Jan 2013; "Cartography". Archived from the original on 2007-09-07. Retrieved 2008-03-16..