@book{han-nom-d8-wy2m-bg49,
  title = {Thăng hàm nhật kí 陞銜日記},
  year = {1908},
  url = {https://www.viet-dien.com/t/han-nom-d8-wy2m-bg49/2},
  pages = {2},
  note = {held by Columbia University Libraries},
  urldate = {2026-09-07},
}