老年人信息需求的特征——基于对成都市新都区老年人的调查研究

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1003-3475|volume|5|150-152

ISSN: 1003-3475

Source: 经营与管理, Vol.volume, Iss.5, 2017-01, pp. : 150-152

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Abstract