Analysis of information sources in references of the Wikipedia article "Yakama" in English language version.
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Note that while the Tribe's name is spelled 'Yakama' in the treaty, the spelling 'Yakima' later became common, and is still used in the names of the river, county, and city derived from the tribal name, but in 1994 the Yakima Tribe changed the spelling of its name back to the original Yakama Tribe.
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