Abacus/Bibliography

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A list of key readings about Abacus.
Please sort and annotate in a user-friendly manner. For formatting, consider using automated reference wikification.
  • Takashi Kojima, The Japanese Abacus: its Use and Theory ISBN 0-8048-0278-5
  • Takashi Kojima, Advanced Abacus: Japanese Theory and Practice ISBN 0-8048-0003-0