@book{han-nom-d8-qgb6-g944,
  title = {Nam nữ giao hợp phụ luận 男女交合附論},
  author = {Kiè̂u, Oánh Mậu},
  year = {1903},
  url = {https://www.viet-dien.com/t/han-nom-d8-qgb6-g944/4},
  pages = {4},
  note = {held by Columbia University Libraries},
  urldate = {2026-09-07},
}