@book{han-nom-d8-wcmk-5v13,
  title = {Cổ phương 古方},
  url = {https://viet-dien.com/t/han-nom-d8-wcmk-5v13/16},
  pages = {16},
  note = {held by Columbia University Libraries},
  urldate = {2026-09-14},
}