@book{han-nom-d8-qrrr-dz42,
  title = {Việt sử yếu/Việt Nam sử yếu 越史要/越南史要},
  author = {Hoàng, Cao Khải},
  year = {1914},
  url = {https://www.viet-dien.com/t/han-nom-d8-qrrr-dz42/1},
  pages = {1},
  note = {held by Columbia University Libraries},
  urldate = {2026-09-07},
}