research on some problems of Zhejiang's economy 转型与发展：浙江经济若干问题研究：research on some problems of Zhejiang's economy Research on hot issues of China's economy Research on some problems in combinatorics Research on the employment problem of China's eonomy Research on some problems of contemporary Marxism The three problems of China's economy Three problems of China's economy research on the works of Feng Jizhong Research on some problems of the fundamental principles of Marxism
