http://book.klll.cc/ebooks/author/26189.opds?sort_order=release_date 2025-11-15T04:27:37Z Books by Sunzi, approximately 5th century Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-15T04:27:37Z http://en.wikipedia.org/wiki/Sun_Tzu_(mathematician) See also: en.wikipedia 2025-11-15T04:27:37Z https://book.klll.cc/ebooks/24038.opds 孫子算經 (Chinese) approximately 5th century Sunzi