Are there any D journals that can't get on HowNet?

Class d periodicals can't get online.

HowNet is the database of papers, and many journals will be included in the database of HowNet after publishing articles.

In addition to HowNet database, there are authoritative professional databases such as Wanfang, VIP, Long Yuan and Superstar in China. If you don't have any special ideas in this regard, whether you want to go online can be based on the requirements of the school or unit. Because some places specifically stipulate that articles should be searched on HowNet, this requires you to choose periodicals on HowNet.

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