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The Complete Modern Commentary on the Wooden Engraving of Chen Xiyi Zi Wei Dou Shu of the Qing Dynasty (350 pages).pdf

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The Secret of Teaching the Flying Star Purple Wei Dou Shu (485 pages).pdf

Chen Yueqi-Orthodox Advanced Flying Star Purple Wei Dou Shu (188 pages).pdf

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Chen Xiyi – The Complete Book of Zi Wei Dou Shu (Venus Revised Edition) 122 pages.pdf

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Chen Tuan – Flying Star Purple Wei Dou Shu (335 pages).pdf

Chen Ming proofreading – Kang Jie complete book on Yi – Zi Wei Dou Shu (345 pages).pdf

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Wang Tingzhi – Zhongguo School Ziyou Dou Shuang Yi Lecture Notes (Traditional 922 pages).pdf

Wang Tingzhi – Zhongguo School of Ziyou Dou Shuang Yi Lecture Notes (above) 518 pages.pdf