https://tug.org/pipermail/xetex/2008-May/009801.html
[XeTeX] writing mongolian script in xetex
mongolian scriptxetexwriting
https://chromewebstore.google.com/detail/bichigmn-mongolian-script/hlmbpegbohhcnbeajonfjadihnecfjaa
Bichig.mn (Mongolian Script Reader) - Chrome Web Store
Converts horizontal Mongolian script to vertical layout and transliterates to Cyrillic. Powered by Bichig.mn
mongolian scriptmnreaderchromeweb
https://en.wikipedia.org/wiki/Mongolian_script
Mongolian script - Wikipedia
mongolian scriptwikipedia