Economic Evaluation of Farming System Research in NEH Region: Some IssuesSubhasis Mandal,K.K. Datta,T.D. LamaIndian journal of agricultural economics(2010)引用 23|浏览3暂无评分AI 理解论文溯源树样例生成溯源树,研究论文发展脉络Chat Paper正在生成论文摘要