@book{han-nom-d8-ss98-tg33,
  title = {Thiên Nam tứ tự kinh 天南四字經},
  url = {https://viet-dien.com/t/han-nom-d8-ss98-tg33/9},
  pages = {9},
  note = {held by Columbia University Libraries},
  urldate = {2026-09-12},
}