Untitled

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Across
  1. 4. digital repository
  2. 7. an electronic version of printed book
  3. 8. academic publishing company
  4. 9. library theft detection system
  5. 10. massive open online course
Down
  1. 1. search engine
  2. 2. currency of United States
  3. 3. arranging books on shelves according to their classification number
  4. 5. abstract and citation database
  5. 6. issue book to user