@book{han-nom-d8-0n1h-4a98,
  title = {Lịch khoa tứ lục 歷科四錄},
  url = {https://viet-dien.com/t/han-nom-d8-0n1h-4a98/20},
  pages = {20},
  note = {held by Columbia University Libraries},
  urldate = {2026-09-22},
}