全国科普示范县（市、区）活动对农业技术推广的促进作用（2.23）
张艳 石顺科
Studies on Promoting effect of National Science Popularization Exemplary Counties (Cities/Districts) to Agricultural Technology Extension System
中国农学通报
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2012, (20): 193
-197
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DOI: 10.11924/j.issn.1000-6850.2012-0561
