This is the reference books platform provided by Oxford University Press. (Subscribed titles are only available.)

Available titles (As of 2023.4.1)
The Oxford Encyclopedia of Economic History (2005)
The Oxford Dictionary of the Middle Ages (2010)
The Oxford Dictionary of Original Shakespearean Pronunciation (2016)
The Oxford Encyclopedia of Communication and Critical Cultural Studies (2019)
The Oxford Encyclopedia of Public Administration (2022)
The Oxford International Encyclopedia of Legal History (2009)

This is an e-book platform provided by Kinokuniya-Shoten focusing on academic books.

Click "Search" without specifying search criteria, and a list of purchased titles will be displayed.

Kanji Character-Japanese Dictionary (大漢和辞典), published by Taishukan Shoten, is a Chinese/Japanese dictionary containing 50,000 parent characters and 530,000 idioms, based on research from ancient and modern dictionaries and literature.
On-board 14 volumes (volumes 1-12, "addenda" to index volumes, and supplementary volumes)
Not only can you search by directly inputting a kanji, but you can also use searches by radical, stroke count, and reading, as well as part searches, which are useful when you don't know the reading or radical.

■About the "Dictionary of Irish Biography Online"

The Dictionary is an indispensable reference work for Ireland.
It includes the lives of Irish men and women who made a significant contribution in Ireland and abroad, as well as those born overseas who had noteworthy careers in Ireland.

※In March 2021, the Dictionary of Irish Biography moved to an ‘open access’ model, making the entire corpus freely available to all users.

Wiley StatsRef: Statistics Reference Online is a comprehensive online reference resource which covers the fundamentals and
applications of statistics in all fields where it is widely used.

The collective search of a chemical book (chemical handbook, experiment chemistry lecture, standard scientific term dictionary) published in Japan is possible.

The Oxford English Dictionary (OED) is widely regarded as the accepted authority on the English language. It is an unsurpassed guide to the meaning, history, and pronunciation of 600,000 words— past and present—from across the English-speaking world.

"Research Navi" provides some English contents to support learning about Japan and Asia.

This is the digitization of all the study results of Japanese historical place names and local history study (51 volumes/ Heibonsha ) accessable from its WEB site.

This is the digitization of the largest Japanese History Encyclopedia all 15 volumes (17 books).