Michael Buckley’s Moon Travel Handbook on Vietnam says: “Halong is one of the last places where junk sails are still handmade by families of sailmakers.
Manuali i Majkëll Baklit Moon Travel Handbook on Vietnam thotë: « Ha Longu është nga vendet e pakta ku velat e xhonkave bëhen ende me dorë nga familjet e velabërësve.