Sosyŏl helsŭ wa k'oroan 19 ihu ŭi uri sahoe

Handbook of research on text and Web mining techologies

Bu que ding yu bu ke ni tiao jian xia nong di cheng shi liu zhuan de wai bu xing yu she hui li xing jue ce yan jiu

Zou xiang quan qiu di san da huo bi

Jie hun sheng yu fa lü wen ti zhi nan