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Cognomen Yamkasorn (Yamkasorn ) , in all the world, is a very rare last name. The family name Yamkasorn is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Yamkasorn | Thailand |
Arunee, Kittiya, Sanchuda, Amorntep, Chalermphon, and Ratchamongkhon