Also try these large e-book systems, which provide a fairly good number of East Asian books in full-text --
Note:For articles that can be obtained neither from any of the databases listed below nor other holding libraries in North America, you may use East Asian Gateway Service of Chinese Academic Journal Publications, a free fulltext delivery service. Full-text articles are transmitted electronically via the Internet from the participating libraries in mainland China, Hong Kong, Taiwan.
All the databases on this page are being provided with temporary access until September 30, 2020, unless other specified, thanks to the generosity of many vendors. Note that this is a growing list.