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Scientific evaluation of textbooks : an experiment in coöperative evaluation of junior high school mathematics texts
- "Textbooks"
- "Textbooks"@en
- "Scientific evaluation of textbooks : an experiment in coöperative evaluation of junior high school mathematics texts"@en
- "Scientific evaluation of textbooks : an experiment in cooperative evaluation of Junior High School Mathematics texts"
- "Scientific evaluation of textbooks an experiment in cooperative evaluation of junior high mathematics texts"@en
- "Scientific evaluation of textbooks, an experiment in cooperative evaluation of junior high mathematics texts"