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Cognomen คำธรรม (คำธรรม, Kwamtham , Khamtham ) , across the world, is a very rare family name. The cognomen คำธรรม is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
VARIANT | COUNTRY |
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Khamtham, Kwamtham | Thailand |
Dharma, and Khamthamun