Research on preface and postscript of novels in Qing dynasty 并列题名：Research on preface and postscript of novels in Qing dynasty Research on preaching and public speaking of Qing dynasty Extractions of the prefaces and postscripts from books of songs in Qing Dynasty Research on the archives of Nanbu county in qing dynasty 并列题名：Extractions of the prefaces and postscripts from books of songs in Qing Dynasty Collections of preface and postscript to different editions of Dufu's works in Qing dynasty Research on the prefaces in the Northern Song dynasty 并列题名：Research on preaching and public speaking of Qing dynasty Research on the poetic styles of Yue-fu songs in Tang dynasty