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Novita D. STRATEGY AND POLICY FOR IMPROVING CERTIFIED SEED PRODUCTION OF SEED FARMERS IN DELI SERDANG DISTRICT. SOSIAL DAN EKONOMI PERTANIAN [Internet]. 24Nov.2018 [cited 6May2024];12(2):13-. Available from: https://jurnalfp.uisu.ac.id/index.php/sep/article/view/28