Bàn tính (Vietnamese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Bàn tính" in Vietnamese language version.

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archive.org

Smith, David Eugene; Mikami, Yoshio (1914). “Chapter III: The Development of the Soroban.”. A History of Japanese Mathematics. The Open Court Publishing. tr. 43–44. Bản số hoá miến phí tải tại trang Questia.

questia.com

Smith, David Eugene; Mikami, Yoshio (1914). “Chapter III: The Development of the Soroban.”. A History of Japanese Mathematics. The Open Court Publishing. tr. 43–44. Bản số hoá miến phí tải tại trang Questia.

ryerson.ca

ee.ryerson.ca

A Brief History of the Abacus The Abacus: A Brief History "Circa 1600 AD, use and evolution of the Chinese 1/5 abacus was begun by the Japanese via Korea."