@book{han-nom-d8-4rvr-n870,
  title = {Ngọc hạp toản yếu thông dụng 玉匣纂要通用},
  url = {https://www.viet-dien.com/t/han-nom-d8-4rvr-n870/1},
  pages = {1},
  note = {held by Columbia University Libraries},
  urldate = {2026-09-06},
}