"李玉刚" . "Li, Yugang, (jing ji )" . . "Li"@en . "李宇剛" . "李玉剛" . "李玉剛" . "李玉刚, (经济 )" . "李玉剛" . . "李予綱" . "李玉刚" . "yu" . "李宇剛" . "(经济 ) 李玉刚" . "Yugang"@en . . "李予綱" . "李玉刚" . "Li yu gang" . "yu Li yu gang" . "(jing ji ) Yugang Li" . . "Yugang Li"@en . . .