1. Long Yuan Periodical Network, sponsored by Long Yuan Digital Media Group, is a digital publishing platform for domestic humanities and mass periodicals, including periodicals and articles on current politics, business finance, literary novels, education and teaching, and abstract collection.
2. wanfang data, namely Wanfang Data Knowledge Service Platform, is hosted by Beijing wanfang data Co., Ltd. Periodicals, papers, conferences and patents can be searched.
3. China HowNet is the most professional in academic journals and papers retrieval, followed by Wanfang and VIP, and Long Yuan mainly collects humanities journals, so Wanfang.com has a good collection.