Cheng-Yih, C. (2011). Notation, Algorith & Derivation in early Mathematics in China. Variantology 5 : neapolitain affairs : on deep time relations of arts, sciences and technologies.
Chicago-viite (17. p.)Cheng-Yih, Chen. "Notation, Algorith & Derivation in Early Mathematics in China." Variantology 5 : Neapolitain Affairs : On Deep Time Relations of Arts, Sciences and Technologies 2011.
MLA-viite (8. p.)Cheng-Yih, Chen. "Notation, Algorith & Derivation in Early Mathematics in China." Variantology 5 : Neapolitain Affairs : On Deep Time Relations of Arts, Sciences and Technologies, 2011.
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