Studies in Mao Zedong's philosophical thought Study of Van Sitong's philosophical thoughts Study of Tan Sitong's philosophical thinking Trends of Mao Zedong philosophical thinking study Research on Feng Ding's philosophical thought Collected papers on Sun Bokui's philosophical thought Study on Karl Marx and Friedrich Engels philosophical thoughts Study on Karl Marx and Friedrich Engels' philosophical thoughts Gu Yanwu's philosophical thoughts Study on Sallust's historical thought
