Ref.: Biểu thống kê sách Hán Nôm nằm ngoài đăng ký [List of unregistered Hán Nôm books] compiled by Nguyễn Thị Hiền, proofed by Nguyễn Văn Phú (circa 1992-1995), and currently maintained by Bùi Thị Thái, ISSI Director of Preservation & Conservation Department. - Sprache: vietnamesisch (ISO 639)