This site seems to use Unicode, unlike your first link. It's a bit disappointing that the British Library was unable to write the titles in their catalogue in

This site seems to use Unicode, unlike your first link. It's a bit disappointing that the British Library was unable to write the titles in their catalogue in Mongolian script. "ᠮᠣᠩ᠋ᠭᠣᠯ ᠤᠯᠤᠰ ᠤᠨ ᠶᠡᠷᠦᠩᠬᠡᠢᠢᠯᠡᠭᠴᠢ ᠬ" https://president.mn/mng/ https://president.mn/mng/