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- "The Catalan Atlas"
- "Geography of China", Patricia Ebrey
- "Understanding the Geography of China", McColl Robert
- "East Asia in Geographic perspective", Robert Knapp
- "Silk Roads or Steppe Roads?", David Christian's
- "The Silk Road Journal", Daniel C. Waugh (ed.)
- "The Silk Roads: an ICOMOS Thematic Study", Tim Williams
- "Papermaking"
- "The earliest use of iron in China" Suzanne M.M. et al
- "Iron and Steel in Ancient China", Donald Wagner
- The invention of paper