农民采用新技术过程、文化素质和推广方法关系的研究--以江苏省经济欠发达地区淮安市为例
농민채용신기술과정、문화소질화추엄방법관계적연구--이강소성경제흠발체지구회안시위례
Studies on Relationship of New Technique Application Process, Cultural Quality of Farmers and Extension Methods
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