Study on Shen Deqian's poetic thoughts Study on Chen Zheng's economic thoughts Study on Zhang Xunhua's economic thoughts Study of Shi Fu-Liang's political thought Study on Wei Xinghua's economic thoughts Study on Lenin's legal thought Study on Song Tao's economic thoughts 并列题名：Study on Chen Zheng's economic thoughts Study of Gary Snyder's eco-ethic thoughts Study on Liu Guoguang's economic thoughts
