Rāingān phāk sombūn kānsamrūat r̄ængngān.
Nai khēt thēsabān nakhān krungthēp læ Thonburī = Final report of the labor force survey. Bangkok-Thon Buri muncipal areas.

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Item Link Original Source
Limited (search only)   1965/66 University of California
Limited (search only)   1966/67 University of California