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Surname Niwech (Niwech ) , throughout the world, is an extremely rare cognomen. Much more frequently, Niwech is the forename as well as the last name.
นิเวช, and อนิเวช
Jinai, Srilek, Summart, Chuebunyuen, Bootrasri, Harnkham, Onprasert, and Mingmitolan