In Amdo (Qinghai), Salar language has heavy Chinese and Tibetan influence. Although of Turkic origin, major linguistic structures have been absorbed from Chinese. Around 20% of the vocabulary is of Chinese origin, and 10% is also of Tibetan origin. Yet, according to author William Safran, the official Communist Chinese government policy deliberately covers up these influences in academic and linguistics studies, trying to emphasize the Turkic element and completely ignoring the Chinese in the Salar language. The Salar use the Chinese writing system, though they have their own written language which, however, is used by very few people. Salar language has taken loans and influence from neighboring Chinese varieties. It is neighboring variants of Chinese which have loaned words to the Salar language. In Qinghai, many Salar men speak both the Qinghai dialect of Chinese and Salar. Rural Salars can speak Salar fluently while urban Salars often assimilate into the Chinese speaking Hui population.