Chang jian bing fang zhi cong shu. Chang jian bing fang zhi cong shu Bai bing xin zhi cong shu. Yang sheng fang ji cong shu. Chang jian yu bing ji qi fang zhi fang fa/ Chang jian bing jian kang guan li da yi cong shu. Yuan chuang jing pin chang xiao cong shu. Shi bing tu ji cong shu. TRIZ chuang xin fang fa cong shu. Chang jian ji bing fang zhi/