In Vietnam, 20ᵗʰ century , two units:
- A unit of area, 360 square meters.
- A unit of capacity used to measure a volume of soil, an area of 9
ngũ by 10 ngũ, excavated to a depth of 1
thước, about 144 cubic meters.
United Nations, 1966.
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Last revised: 23 January 2002.