Primary Sources on Sengoky Jidai

May 2018
This may be a far-stretched question, but does anyone have any idea where I can find Primary sources on the Sengoku Jidai? I'm trying to find ones which cover Oda Nobunaga, however I can't find any.
Any help is appreciated.
Also, if anyone knows any books or papers on this period, or on Oda it would be much appreciated.