http://www.manchuarchery.org/articles-manchu-archery
http://www.bl.uk/collection-guides/mongolian-collection
http://www.mend-ooyo.mn/
https://archive.org/details/historyoftheworl011691mbp
https://en.wikipedia.org/wiki/Altan_Tobchi
http://www.manchuarchery.org/articles-manchu-archery
http://www.bl.uk/collection-guides/mongolian-collection
http://www.mend-ooyo.mn/
https://archive.org/details/historyoftheworl011691mbp
https://en.wikipedia.org/wiki/Altan_Tobchi