DING YONG , BEI JING SHI FAN DA XUE SHU XUE KE XUE XUE YUAN profile picture

DING YONG , BEI JING SHI FAN DA XUE SHU XUE KE XUE XUE YUAN

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New Century College Books · Beijing Higher quality materials · Mathematics and Applied Mathematics textbook series : Modern analytical foundation ( 2nd Edition )(Chinese Edition)