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Cognomen วิริยะธรรม (วิริยะธรรม , Wiriyatam , Viriyatham ) , around the globe, is a rare family name. The surname วิริยะธรรม is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, วิริยะธรรม is the forename as well as the last name.
VARIANT | COUNTRY |
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วิริยะธรรม, Wiriyatam, Wiriyatham, Viriyatham | Thailand |
Viriyathamma, Wiriyathum, and Wiriytham