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Surname แก้วประสิทธ์ (แก้วประสิทธ์, Kaewpasit , Keawpasirt ) , in the entire world, is a very rare family name. The last name แก้วประสิทธ์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
VARIANT | COUNTRY |
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Kaewpasit, Keawpasirt | Thailand |