共 2 条
- [1] A Nation at Risk:the Imperative for Educational Reform:A Report to the Nation and the Secretary of Education .2 United States National Commission on Excellence in Education. . 1983
- [2] State and Local Adoption of Instructional Materials Overview .2 Texas Education Agency. http://ritter.tea.state.tx.us/textbooks/materials/bulletin/overview.pdf . 2010