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Surname ถาวรสุทธิ์ (ถาวรสุทธิ์ , Thawornsut ) , in all the world, is a very rare cognomen. The last name ถาวรสุทธิ์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
VARIANT | COUNTRY |
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ถาวรสุทธิ์, Thawornsut | Thailand |