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Last name ถาวรคุณ (ถาวรคุณ , Thawornkhun ) , worldwide, is a rare cognomen. The surname ถาวรคุณ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
VARIANT | COUNTRY |
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Thawornkhun, ถาวรคุณ | Thailand |
Tavonkhun, and Thavornkun