Useful. The paper exchange certificate of Shaanxi Education Society is useful. Shaanxi Education Association was founded in July 1979, which is the earliest and largest academic group in Shaanxi education system. At present, there are 892 members in kindergartens, primary schools, junior high schools, ordinary high schools, normal colleges, vocational education, special education, prefectural and county teaching and research offices (societies), science and technology associations, the Communist Youth League and other units.