Joe's site is excellent.
What's your topic?
The easiest is journal to cite is:
Japanese Journal of Religious Studies
...because they have full text on the web. Look for the Keenan exchange (4 parts); also, someone did something on Bushi religion.
Journal of Asian Martial Arts
Journal of Japanese Studies
Monumenta Nipponica
Philosophy East and West
Other journals might be history. Search on names like Karl Friday, William Bodiford, Thomas Conlan, Harold Bolitho, Cameron Hurst III, Martin Collcutt for specific references.
Good luck.
Don J. Modesto
Ft. Lauderdale, Florida
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http://theaikidodojo.com/